
                                       UNITED STATES
                           SECURITIES AND EXCHANGE COMMISSION
                                 Washington, D.C.  20549


                                        FORM 8-K


                     Current Report Pursuant To Section 13 or 15(d) of
                            the Securities Exchange Act of 1934

           Date of Report (Date of earliest event reported):  October 25, 2005
                         (Date of earliest event reported)

          Ameriquest Mortgage Securities Inc (as Depositor under the Pooling
          and Servicing Agreement, dated as May 1, 2005, providing for the
          issuance of Asset-Backed Pass-Through Certificates, Series 2005-R4)
                 (Exact name of registrant as specified in charter)


                                       DELAWARE
                     (State or Other Jurisdiction of Incorporation)

               333-121781-04                          33-0885129
          (Commission File Number)        (I.R.S. Employer Identification No.)


          1100 TOWN & COUNTRY ROAD, SUITE 1100
          ORANGE, CALIFORNIA                              92868
          (Address of principal executive offices)     (Zip Code)


          Registrant's Telephone Number, Including Area Code:  (714) 564-0660


(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any
of the following provisions (see General Instruction A.2. below):


[  ] Written communications pursuant to Rule 425 under the Securities Act
(17 CFR 230.425)

[  ] Soliciting material pursuant to Rule 14a-12(b) under the Exchange Act
(17 CFR 240.14a-12(b))

[  ] Pre-commencement communications pursuant to Rule 14d-2(b) under the
Exchange Act (17 CFR 240.14d-2(b))

[  ] Pre-commencement communications pursuant to Rule 13e-4(c) under the
Exchange Act (17 CFR 240.13e-4(c))


     Item 8.01  Other Events

     Attached hereto is a copy of the Monthly Remittance Statements to the
     Certificateholders which was derived from the monthly information
     submitted by the Master Servicer of the Trust to the Trustee.


     Item 9.01 Financial Statements and Exhibits

     (c) Exhibits:

     Exhibit No. Description

     99.1 Monthly Remittance Statement to the Certificateholders dated as of
     October 25, 2005.

                                    Signatures

               Pursuant to the requirements of the Securities Exchange Act of
          1934, the Registrant has duly caused this report to be signed on its
          behalf by the undersigned, hereunto duly authorized.


                                  Deutsche Bank National Trust Company,
                                  in its capacity as Trustee under the
                                  Pooling and Servicing Agreement on
                                  behalf of Ameriquest Mortgage
                                  Securities Inc., Registrant


          Date:  Oct 28, 2005               By:  /s/  Katherine M. Wannenmacher
                                            Katherine M. Wannenmacher
                                            Vice President


                                   EXHIBIT INDEX

          DOCUMENT

          99.1 Monthly Remittance Statement to the Certificateholders
          dated as of October 25, 2005.



Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

				External Parties						Table of Contents

													Page
				Seller
										1. Certificate Payment Report					2
				Ameriquest Mtg Sec Inc
										2. Collection Account Report					6

										3. Credit Enhancement Report					8
										4. Collateral Report					9
				Certificate Insurer(s)						5. Delinquency Report					12

										6. REO Report					15

										7. Foreclosure Report					16
										8. Prepayment Report					17
										9. Prepayment Detail Report					20

										10. Realized Loss Report					28
										11. Realized Loss Detail Report					31
				Servicer(s)
										12. Triggers and Adj. Cert. Report					32
				Ameriquest Mortgage Corp
										13. Additional Certificate Report					33



				Underwriter(s)
				Goldman Sachs & Co.
				J. P. Morgan
				BNP Paribas
				Citigroup

										Total Number of Pages					33



				Dates						Contacts

				Cut-Off Date:			May 01, 2005			Valerie Delgado
				Close Date:			May 25, 2005			Administrator
				First Distribution Date:			June 27, 2005			(714) 247-6273
										valerie.m.delgado@db.com

										Address:
										1761 East St. Andrew Place, Santa Ana, CA 92705
				Distribution Date:			October 25, 2005
										Factor Information:			(800) 735-7777
				Record Date:			September 30, 2005
										Main Phone Number:			(714) 247-6000

							October 24, 2005


										https://www.tss.db.com/invr






Page 1 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
Certificate Payment Report
Current Period Distribution - REMIC-IV
					Prior												Current
	Class		Original		Principal						Total		Realized		Deferred		Principal

Class	Type	Cur	Face Value		Balance		Interest		Principal		Distribution		Loss		Interest		Balance


					(1)		(2)		(3)		(4)=(2)+(3)		(5)		(6)		(7)=(1)-(3)-(5)+(6)

A-1A	FLT,STEP	$	1,133,764,000.00		1,045,996,739.87		3,420,990.45		37,462,212.87		40,883,203.32		0.00		0.00		1,008,534,527.00

A-1B	FLT,STEP	$	283,441,000.00		261,499,184.98		865,780.22		9,365,553.22		10,231,333.44		0.00		0.00		252,133,631.76
A-2A	FLT,STEP	$	127,959,000.00		86,024,375.14		270,952.89		14,688,491.51		14,959,444.40		0.00		0.00		71,335,883.63
A-2B	FLT,STEP	$	59,971,000.00		59,971,000.00		191,790.59		0.00		191,790.59		0.00		0.00		59,971,000.00
A-2C	FLT,STEP	$	104,867,000.00		104,867,000.00		342,128.59		0.00		342,128.59		0.00		0.00		104,867,000.00
A-2D	FLT,STEP	$	45,998,000.00		45,998,000.00		153,773.87		0.00		153,773.87		0.00		0.00		45,998,000.00
M-1	MEZ,STEP,FL	$	41,000,000.00		41,000,000.00		140,698.33		0.00		140,698.33		0.00		0.00		41,000,000.00
M-2	MEZ,STEP,FL	$	48,000,000.00		48,000,000.00		165,493.33		0.00		165,493.33		0.00		0.00		48,000,000.00
M-3	MEZ,STEP,FL	$	29,000,000.00		29,000,000.00		100,686.39		0.00		100,686.39		0.00		0.00		29,000,000.00
M-4	MEZ,STEP,FL	$	25,000,000.00		25,000,000.00		89,819.44		0.00		89,819.44		0.00		0.00		25,000,000.00
M-5	MEZ,STEP,FL	$	21,000,000.00		21,000,000.00		75,786.67		0.00		75,786.67		0.00		0.00		21,000,000.00
M-6	MEZ,STEP,FL	$	13,000,000.00		13,000,000.00		47,125.00		0.00		47,125.00		0.00		0.00		13,000,000.00
M-7	MEZ,STEP,FL	$	10,000,000.00		10,000,000.00		40,519.44		0.00		40,519.44		0.00		0.00		10,000,000.00
M-8	MEZ,STEP,FL	$	10,000,000.00		10,000,000.00		41,325.00		0.00		41,325.00		0.00		0.00		10,000,000.00
M-9	MEZ,STEP,FL	$	13,000,000.00		13,000,000.00		58,435.00		0.00		58,435.00		0.00		0.00		13,000,000.00
M-10	MEZ,STEP,FL	$	13,000,000.00		13,000,000.00		68,907.22		0.00		68,907.22		0.00		0.00		13,000,000.00
M-11	MEZ,STEP,FL	$	11,000,000.00		11,000,000.00		58,306.11		0.00		58,306.11		0.00		0.00		11,000,000.00
CE	SUB	$	9,999,900.00		10,000,000.00		3,337,476.51		0.00		3,337,476.51		0.00		0.00		10,000,000.00
P	SUB	$	100.00		100.00		882,226.28		0.00		882,226.28		0.00		0.00		100.00
R	R	$	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00


Total			2,000,000,000.00		1,848,356,399.99		10,352,221.33		61,516,257.60		71,868,478.93		0.00		0.00		1,786,840,142.39






Page 2 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

Interest Accrual Detail Current Period Factor Information per $1,000 of Original Face-
									Orig. Principal		Prior							Current

	Period		Period						(with Notional)		Principal						Total	Principal

Class	Starting		Ending		Method		Cusip		Balance		Balance		Interest		Principal		Distribution	Balance

									(1)		(1)		(2)		(3)		(4)=(2)+(3)	(5)
A-1A	09/26/05		10/24/05		A-Act/360		03072SB46		1,133,764,000.00		922.587717		3.017374		33.042338		36.059712	889.545379
A-1B	09/26/05		10/24/05		A-Act/360		03072SB53		283,441,000.00		922.587717		3.054534		33.042338		36.096872	889.545379
A-2A	09/26/05		10/24/05		A-Act/360		03072SB61		127,959,000.00		672.280771		2.117498		114.790609		116.908107	557.490162
A-2B	09/26/05		10/24/05		A-Act/360		03072SB79		59,971,000.00		1,000.000000		3.198056		0.000000		3.198056	1,000.000000
A-2C	09/26/05		10/24/05		A-Act/360		03072SB87		104,867,000.00		1,000.000000		3.262500		0.000000		3.262500	1,000.000000
A-2D	09/26/05		10/24/05		A-Act/360		03072SB95		45,998,000.00		1,000.000000		3.343056		0.000000		3.343056	1,000.000000
M-1	09/26/05		10/24/05		A-Act/360		03072SC29		41,000,000.00		1,000.000000		3.431667		0.000000		3.431667	1,000.000000
M-2	09/26/05		10/24/05		A-Act/360		03072SC37		48,000,000.00		1,000.000000		3.447778		0.000000		3.447778	1,000.000000
M-3	09/26/05		10/24/05		A-Act/360		03072SC45		29,000,000.00		1,000.000000		3.471944		0.000000		3.471944	1,000.000000
M-4	09/26/05		10/24/05		A-Act/360		03072SC52		25,000,000.00		1,000.000000		3.592778		0.000000		3.592778	1,000.000000
M-5	09/26/05		10/24/05		A-Act/360		03072SC60		21,000,000.00		1,000.000000		3.608889		0.000000		3.608889	1,000.000000
M-6	09/26/05		10/24/05		A-Act/360		03072SC78		13,000,000.00		1,000.000000		3.625000		0.000000		3.625000	1,000.000000
M-7	09/26/05		10/24/05		A-Act/360		03072SC86		10,000,000.00		1,000.000000		4.051944		0.000000		4.051944	1,000.000000
M-8	09/26/05		10/24/05		A-Act/360		03072SC94		10,000,000.00		1,000.000000		4.132500		0.000000		4.132500	1,000.000000
M-9	09/26/05		10/24/05		A-Act/360		03072SD28		13,000,000.00		1,000.000000		4.495000		0.000000		4.495000	1,000.000000
M-10	09/26/05		10/24/05		A-Act/360		03072SD36		13,000,000.00		1,000.000000		5.300555		0.000000		5.300555	1,000.000000
M-11	09/26/05		10/24/05		A-Act/360		03072SD44		11,000,000.00		1,000.000000		5.300555		0.000000		5.300555	1,000.000000
CE	09/01/05		09/30/05		F-30/360				2,009,999,900.00		4.975125		1.660436		0.000000		1.660436	4.975125
P	09/01/05		09/30/05		F-30/360				100.00		1,000.000000		8,822,262.800000		0.000000		8,822,262.800000	1,000.000000
R	09/01/05		09/30/05		F-30/360				0.00		0.000000		0.000000		0.000000		0.000000	0.000000




Page 3 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

Distribution to Date - REMIC-IV
																	Current


	Original				Unscheduled		Scheduled		Total		Total		Realized		Deferred		Principal

Class	Face Value		Interest		Principal		Principal		Principal		Distribution		Loss		Interest		Balance
	(1)		(2)		(3)		(4)		(5)=(3)+(4)		(6)=(2)+(5)		(7)		(8)		(9)=(1)-(5)-(7)+(8)
A-1A	1,133,764,000.00		17,169,811.46		121,197,378.86		4,032,094.14		125,229,473.00		142,399,284.46		0.00		0.00		1,008,534,527.00
A-1B	283,441,000.00		4,350,702.86		30,299,344.71		1,008,023.53		31,307,368.24		35,658,071.10		0.00		0.00		252,133,631.76
A-2A	127,959,000.00		1,664,492.27		54,825,172.06		1,797,944.31		56,623,116.37		58,287,608.64		0.00		0.00		71,335,883.63
A-2B	59,971,000.00		917,960.50		0.00		0.00		0.00		917,960.50		0.00		0.00		59,971,000.00
A-2C	104,867,000.00		1,640,826.69		0.00		0.00		0.00		1,640,826.69		0.00		0.00		104,867,000.00
A-2D	45,998,000.00		739,267.90		0.00		0.00		0.00		739,267.90		0.00		0.00		45,998,000.00
M-1	41,000,000.00		678,108.83		0.00		0.00		0.00		678,108.83		0.00		0.00		41,000,000.00
M-2	48,000,000.00		797,963.51		0.00		0.00		0.00		797,963.51		0.00		0.00		48,000,000.00
M-3	29,000,000.00		485,800.47		0.00		0.00		0.00		485,800.47		0.00		0.00		29,000,000.00
M-4	25,000,000.00		434,731.00		0.00		0.00		0.00		434,731.00		0.00		0.00		25,000,000.00
M-5	21,000,000.00		366,959.04		0.00		0.00		0.00		366,959.04		0.00		0.00		21,000,000.00
M-6	13,000,000.00		228,270.13		0.00		0.00		0.00		228,270.13		0.00		0.00		13,000,000.00
M-7	10,000,000.00		198,117.39		0.00		0.00		0.00		198,117.39		0.00		0.00		10,000,000.00
M-8	10,000,000.00		202,367.40		0.00		0.00		0.00		202,367.40		0.00		0.00		10,000,000.00
M-9	13,000,000.00		287,940.13		0.00		0.00		0.00		287,940.13		0.00		0.00		13,000,000.00
M-10	13,000,000.00		343,190.12		0.00		0.00		0.00		343,190.12		0.00		0.00		13,000,000.00
M-11	11,000,000.00		290,391.64		0.00		0.00		0.00		290,391.64		0.00		0.00		11,000,000.00
CE	9,999,900.00		15,649,818.10		0.00		0.00		0.00		15,649,818.10		0.00		100.00		10,000,000.00
P	100.00		2,630,595.79		0.00		0.00		0.00		2,630,595.79		0.00		0.00		100.00
R	0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00


Total	2,000,000,000.00		49,077,315.23		206,321,895.63		6,838,061.98		213,159,957.61		262,237,272.84		0.00		100.00		1,786,840,142.39



Page 4 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

Interest Detail - REMIC-IV
	Pass		Prior Principal				Non-		Prior		Unscheduled				Paid or		Current


	Through		(with Notional)		Accrued		Supported		Unpaid		Interest		Optimal		Deferred		Unpaid

Class	Rate		Balance		Interest		Interest SF		Interest		Adjustment		Interest		Interest		Interest
					(1)		(2)		(3)		(4)		(5)=(1)-(2)+(3)+(4)		(6)		(7)=(5)-(6)
A-1A	4.06000%		1,045,996,739.87		3,420,990.45		0.00		0.00		0.00		3,420,990.45		3,420,990.45		0.00
A-1B	4.11000%		261,499,184.98		865,780.22		0.00		0.00		0.00		865,780.22		865,780.22		0.00
A-2A	3.91000%		86,024,375.14		270,952.89		0.00		0.00		0.00		270,952.89		270,952.89		0.00
A-2B	3.97000%		59,971,000.00		191,790.59		0.00		0.00		0.00		191,790.59		191,790.59		0.00
A-2C	4.05000%		104,867,000.00		342,128.59		0.00		0.00		0.00		342,128.59		342,128.59		0.00
A-2D	4.15000%		45,998,000.00		153,773.87		0.00		0.00		0.00		153,773.87		153,773.87		0.00
M-1	4.26000%		41,000,000.00		140,698.33		0.00		0.00		0.00		140,698.33		140,698.33		0.00
M-2	4.28000%		48,000,000.00		165,493.33		0.00		0.00		0.00		165,493.33		165,493.33		0.00
M-3	4.31000%		29,000,000.00		100,686.39		0.00		0.00		0.00		100,686.39		100,686.39		0.00
M-4	4.46000%		25,000,000.00		89,819.44		0.00		0.00		0.00		89,819.44		89,819.44		0.00
M-5	4.48000%		21,000,000.00		75,786.67		0.00		0.00		0.00		75,786.67		75,786.67		0.00
M-6	4.50000%		13,000,000.00		47,125.00		0.00		0.00		0.00		47,125.00		47,125.00		0.00
M-7	5.03000%		10,000,000.00		40,519.44		0.00		0.00		0.00		40,519.44		40,519.44		0.00
M-8	5.13000%		10,000,000.00		41,325.00		0.00		0.00		0.00		41,325.00		41,325.00		0.00
M-9	5.58000%		13,000,000.00		58,435.00		0.00		0.00		0.00		58,435.00		58,435.00		0.00
M-10	6.58000%		13,000,000.00		68,907.22		0.00		0.00		0.00		68,907.22		68,907.22		0.00
M-11	6.58000%		11,000,000.00		58,306.11		0.00		0.00		0.00		58,306.11		58,306.11		0.00
CE	400.49718%		10,000,000.00		0.00		0.00		0.00		0.00		0.00		3,337,476.51		0.00
P	0.00000%		100.00		0.00		0.00		0.00		0.00		0.00		882,226.28		0.00
R	0.00000%		0.00		0.00		0.00		0.00		0.00		0.00		0.00		0.00


Total			1,848,356,399.99		6,132,518.54		0.00		0.00		0.00		6,132,518.54		10,352,221.33		0.00



Page 5 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
Collection Account Report
SUMMARY

										Group 2		Group 1		Total
Principal Collections										14,688,491.51		46,827,766.09		61,516,257.60
Principal Withdrawals										0.00		0.00		0.00
Principal Other Accounts										0.00		0.00		0.00
TOTAL NET PRINCIPAL										14,688,491.51		46,827,766.09		#######
Interest Collections										2,046,283.21		9,310,459.50		11,356,742.71
Interest Withdrawals										-0.00		-0.00		-0.00
Interest Fees										-264,446.85		-985,170.88		-1,392,924.86
Interest Other Accounts										0.00		0.00		882,226.28
TOTAL NET INTEREST										1,781,836.37		8,325,288.62		10,846,044.13
TOTAL AVAILABLE FUNDS FOR DISTRIBUTION										16,470,327.88		55,153,054.71		71,868,478.93



PRINCIPAL - COLLECTIONS

											Group 2		Group 1		Total
Scheduled Principal Received											232,021.59		1,143,642.73		1,375,664.32
Curtailments											20,855.76		123,637.28		144,493.04
Prepayments In Full											14,435,614.16		45,430,995.82		59,866,609.98
Repurchased/Substitutions											0.00		129,490.26		129,490.26
Liquidations											0.00		0.00		0.00
Insurance Principal											0.00		0.00		0.00
Other Additional Principal											0.00		0.00		0.00
Delinquent Principal											-184,929.84		-896,139.03		-1,081,068.87
Realized Losses											-0.00		-0.00		-0.00
Advanced Principal											184,929.84		896,139.03		1,081,068.87
TOTAL PRINCIPAL COLLECTED											14,688,491.51		46,827,766.09		61,516,257.60


PRINCIPAL - WITHDRAWALS

SPACE INTENTIONALLY LEFT BLANK



PRINCIPAL - OTHER ACCOUNTS

										Group 2		Group 1		Total
TOTAL PRINCIPAL OTHER ACCOUNTS										0.00		0.00		0.00





Page 6 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

INTEREST - COLLECTIONS

										Group 2		Group 1		Total
Scheduled Interest										2,160,558.09		9,805,760.30		11,966,318.39
Repurchased/Substitution Interest										0.00		771.55		771.55
Liquidation Interest										0.00		0.00		0.00
Insurance Interest										0.00		0.00		0.00
Other Additional Interest										0.00		0.00		0.00
Prepayment Interest Shortfalls										-22,825.02		-56,906.87		-79,731.89
Delinquent Interest										-1,728,837.30		-7,823,615.60		-9,552,452.90
Compensating Interest										22,825.02		56,906.87		79,731.89
Civil Relief Act Shortfalls										-0.00		-709.45		-709.45
Interest Advanced										1,614,562.43		7,328,252.69		8,942,815.12
TOTAL INTEREST COLLECTED										2,046,283.21		9,310,459.50		11,356,742.71


INTEREST - WITHDRAWALS

										Group 2		Group 1		Total
Non-Recoverable Advances										0.00		0.00		0.00
TOTAL INTEREST WITHDRAWALS										0.00		0.00		0.00



INTEREST - OTHER ACCOUNTS

										Group 2		Group 1		Total
Prepayment Charges														882,226.28
Net WAC Investment Income
TOTAL INTEREST OTHER ACCOUNTS										0.00		0.00		882,226.28



INTEREST - FEES

										Group 2		Group 1		Total
Current Servicing Fees										143,307.14		17,203.58		160,510.72
Trustee Fees										286.61		1,253.68		1,540.30
PMI										249,948.05		980,925.80		1,230,873.85
SWAP (INFLOW) / OUTFLOW														493,822.80
TOTAL INTEREST FEES										264,446.85		985,170.88		1,392,924.86




Page 7 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
Credit Enhancement Report
ACCOUNTS

										Group 2		Group 1		Total
Net WAC Reserve Account Balance



INSURANCE

										Group 2		Group 1		Total
PMI										249,948.05		980,925.80		1,230,873.85



STRUCTURAL FEATURES

										Group 2		Group 1		Total
Overcollateralized Amount														10,000,000.00
Overcollateralization Reduction Amount														0.00
Overcollateralization Deficiency Amount														0.00
Overcollateralization Target Amount														10,000,000.00





Page 8 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
Collateral Report


COLLATERAL



											Group 2		Group 1		Total



Loan Count:


Original										874		8,391		9,265
Prior										1,020		9,958		10,978
Prefunding										0		0		0
Scheduled Paid Offs										-0		-0		-0
Full Voluntary Prepayments										-37		-254		-291
Repurchases										-0		-1		-1
Liquidations										-0		-0		-0
Current										983		9,703		10,686
Principal Balance:


Original										308,697,370.82		1,291,301,843.92		1,599,999,214.74
Prior										343,937,142.64		1,504,419,257.35		1,848,356,399.99
Prefunding										0.00		0.00		0.00
Scheduled Principal										-232,021.59		-1,143,642.73		-1,375,664.32
Partial Prepayments										-20,855.76		-123,637.28		-144,493.04
Full Voluntary Prepayments										-14,435,614.16		-45,430,995.82		-59,866,609.98
Repurchases										-0.00		-129,490.26		-129,490.26
Liquidations										-0.00		-0.00		-0.00
Current										329,248,651.13		1,457,591,491.26		1,786,840,142.39





PREFUNDING

										Group 2		Group 1		Total
Prefunding Account Original Balance										0.00		0.00		0.00
Subsequent Loans Added to the Pool										0.00		0.00		0.00
Prefund Release to Certificate Holders										0.00		0.00		0.00
Prefunding Account Ending Balance										0.00		0.00		0.00






Page 9 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

CHARACTERISTICS

										Group 2		Group 1		Total
Weighted Average Coupon Original										7.62921%		7.84569%		7.80393%
Weighted Average Coupon Prior										7.56888%		7.83381%		7.78361%
Weighted Average Coupon Current										7.53821%		7.82218%		7.76934%
Weighted Average Months to Maturity Original										355		350		351
Weighted Average Months to Maturity Prior										352		347		348
Weighted Average Months to Maturity Current										351		346		347
Weighted Avg Remaining Amortization Term Original										355		350		351
Weighted Avg Remaining Amortization Term Prior										352		347		348
Weighted Avg Remaining Amortization Term Current										351		346		347
Weighted Average Seasoning Original										2.14		2.23		2.21
Weighted Average Seasoning Prior										4.72		4.81		4.79
Weighted Average Seasoning Current										5.70		5.80		5.78









Page 10 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

ARM CHARACTERISTICS

										Group 2		Group 1		Total
Weighted Average Margin Original										5.60803%		5.84253%		5.79733%
Weighted Average Margin Prior										5.60670%		5.83937%		5.79531%
Weighted Average Margin Current										5.60295%		5.83568%		5.79267%
Weighted Average Max Rate Original										13.85927%		14.03536%		14.00141%
Weighted Average Max Rate Prior										13.79238%		14.02445%		13.98051%
Weighted Average Max Rate Current										13.76409%		14.01288%		13.96690%
Weighted Average Min Rate Original										7.85927%		8.03536%		8.00141%
Weighted Average Min Rate Prior										7.79238%		8.02445%		7.98051%
Weighted Average Min Rate Current										7.76409%		8.01288%		7.96690%
Weighted Average Cap Up Original										1.00000%		1.00000%		1.00000%
Weighted Average Cap Up Prior										1.00000%		1.00000%		1.00000%
Weighted Average Cap Up Current										1.00000%		1.00000%		1.00000%
Weighted Average Cap Down Original										1.00000%		1.00000%		1.00000%
Weighted Average Cap Down Prior										1.00000%		1.00000%		1.00000%
Weighted Average Cap Down Current										1.00000%		1.00000%		1.00000%




SERVICING FEES & ADVANCES

											Group 2		Group 1		Total




Current Servicing Fees										143,307.14		17,203.58		160,510.72
Delinquent Servicing Fees										114,274.87		495,362.91		609,637.78
TOTAL SERVICING FEES										143,307.15		626,841.39		770,148.54


Total Servicing Fees										143,307.15		626,841.39		770,148.54
Compensating Interest										-22,825.02		-56,906.87		-79,731.89
Delinquent Servicing Fees										-114,274.87		-495,362.91		-609,637.78
COLLECTED SERVICING FEES										6,207.25		74,571.62		80,778.86


Total Advanced Interest										1,614,562.43		7,328,252.69		8,942,815.12
Total Advanced Principal										184,929.84		896,139.03		1,081,068.87
Aggregate Advances with respect to this Distribution										1,799,492.27		8,224,391.72		10,023,883.99





ADDITIONAL COLLATERAL INFORMATION
										Group 2		Group 1		Total
Prepayment Interest Shortfall (PPIS)										22,825.02		56,906.87		79,731.89
Compensating Interest										-22,825.02		-56,906.87		-79,731.89
Net Prepayment Interest Shortfall (PPIS)										0.00		0.00		0.00


Ending Pool Stated Principal Balance										329,248,651.13		1,457,591,491.26		1,786,840,142.39
Weighted Average Net Mortgage Rate										6.216844%		6.641232%		7.041988%




Page 11 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
Delinquency Report

	TOTAL
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				22,445,716.70		10,819,183.05		3,260,618.37		36,525,518.12
			% Balance				1.26%		0.61%		0.18%		2.04%
			# Loans				139		59		16		214
			% # Loans				1.30%		0.55%		0.15%		2.00%
	FORECLOSURE		Balance		0.00		0.00		1,512,451.53		5,838,483.87		7,350,935.40
			% Balance		0.00%		0.00%		0.08%		0.33%		0.41%
			# Loans		0		0		9		36		45
			% # Loans		0.00%		0.00%		0.08%		0.34%		0.42%
	BANKRUPTCY		Balance		2,910,190.00		355,734.79		508,711.48		0.00		3,774,636.27
			% Balance		0.16%		0.02%		0.03%		0.00%		0.21%
			# Loans		23		2		5		0		30
			% # Loans		0.22%		0.02%		0.05%		0.00%		0.28%
	REO		Balance		0.00		0.00		0.00		870,925.36		870,925.36
			% Balance		0.00%		0.00%		0.00%		0.05%		0.05%
			# Loans		0		0		0		5		5
			% # Loans		0.00%		0.00%		0.00%		0.05%		0.05%
	TOTAL		Balance		2,910,190.00		22,801,451.49		12,840,346.06		9,970,027.60		48,522,015.15
			% Balance		0.16%		1.28%		0.72%		0.56%		2.72%
			# Loans		23		141		73		57		294
			% # Loans		0.22%		1.32%		0.68%		0.53%		2.75%









Page 12 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution


	GROUP 1
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				17,390,831.31		7,922,164.60		2,392,710.14		27,705,706.05
			% Balance				1.19%		0.54%		0.16%		1.90%
			# Loans				122		51		14		187
			% # Loans				1.26%		0.53%		0.14%		1.93%
	FORECLOSURE		Balance		0.00		0.00		1,512,451.53		4,645,884.03		6,158,335.56
			% Balance		0.00%		0.00%		0.10%		0.32%		0.42%
			# Loans		0		0		9		31		40
			% # Loans		0.00%		0.00%		0.09%		0.32%		0.41%
	BANKRUPTCY		Balance		2,810,424.54		355,734.79		508,711.48		0.00		3,674,870.81
			% Balance		0.19%		0.02%		0.03%		0.00%		0.25%
			# Loans		22		2		5		0		29
			% # Loans		0.23%		0.02%		0.05%		0.00%		0.30%
	REO		Balance		0.00		0.00		0.00		743,709.53		743,709.53
			% Balance		0.00%		0.00%		0.00%		0.05%		0.05%
			# Loans		0		0		0		4		4
			% # Loans		0.00%		0.00%		0.00%		0.04%		0.04%
	TOTAL		Balance		2,810,424.54		17,746,566.10		9,943,327.61		7,782,303.70		38,282,621.95
			% Balance		0.19%		1.22%		0.68%		0.53%		2.63%
			# Loans		22		124		65		49		260
			% # Loans		0.23%		1.28%		0.67%		0.50%		2.68%










Page 13 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

	GROUP 2
					< 1 PAYMENT		1 PAYMENT		2 PAYMENTS		3+ PAYMENTS		TOTAL
	DELINQUENT		Balance				5,054,885.39		2,897,018.45		867,908.23		8,819,812.07
			% Balance				1.54%		0.88%		0.26%		2.68%
			# Loans				17		8		2		27
			% # Loans				1.73%		0.81%		0.20%		2.75%
	FORECLOSURE		Balance		0.00		0.00		0.00		1,192,599.84		1,192,599.84
			% Balance		0.00%		0.00%		0.00%		0.36%		0.36%
			# Loans		0		0		0		5		5
			% # Loans		0.00%		0.00%		0.00%		0.51%		0.51%
	BANKRUPTCY		Balance		99,765.46		0.00		0.00		0.00		99,765.46
			% Balance		0.03%		0.00%		0.00%		0.00%		0.03%
			# Loans		1		0		0		0		1
			% # Loans		0.10%		0.00%		0.00%		0.00%		0.10%
	REO		Balance		0.00		0.00		0.00		127,215.83		127,215.83
			% Balance		0.00%		0.00%		0.00%		0.04%		0.04%
			# Loans		0		0		0		1		1
			% # Loans		0.00%		0.00%		0.00%		0.10%		0.10%
	TOTAL		Balance		99,765.46		5,054,885.39		2,897,018.45		2,187,723.90		10,239,393.20
			% Balance		0.03%		1.54%		0.88%		0.66%		3.11%
			# Loans		1		17		8		8		34
			% # Loans		0.10%		1.73%		0.81%		0.81%		3.46%









Page 14 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
REO Report
Loan Number			Original		Stated				Current		State &

														First
&			Principal		Principal		Paid to		Note		LTV at		Original		Payment

Loan Group			Balance		Balance		Date		Rate		Origination		Term		Date
97846067 1
			96,242.00		95,569.84		01-Apr-2005		7.950%		GA - 80.20%		360		01-Jan-2005

106258726 1			228,000.00		227,181.85		01-Apr-2005		8.650%		NH - 80.00%		360		01-May-2005
112530001 1			108,750.00		108,309.24		01-Apr-2005		8.050%		MI - 75.00%		360		01-May-2005
115259749 1			313,500.00		312,648.60		01-May-2005		9.100%		MO - 85.19%		360		01-Jun-2005
108951641 2			127,500.00		127,215.83		01-Apr-2005		11.650%		GA - 75.00%		360		01-Apr-2005


TOTAL			873,992.00		870,925.36


Page 15 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
Foreclosure Report
Loan Number			Original		Stated				Current		State &

														First
&			Principal		Principal		Paid to		Note		LTV at		Original		Payment

Loan Group			Balance		Balance		Date		Rate		Origination		Term		Date
101866929 1
			155,000.00		154,067.01		01-Apr-2005		8.150%		TN - 37.81%		360		01-Feb-2005

104877600 1			190,000.00		189,093.57		01-Apr-2005		8.700%		AR - 83.52%		360		01-Mar-2005
105088561 1			60,000.00		#######		01-May-2005		10.600%		MI - 73.21%		360		01-Feb-2005
105462006 1			267,000.00		265,721.23		01-Jun-2005		8.700%		NJ - 60.00%		360		01-Mar-2005
105525661 1			240,000.00		238,543.49		01-Mar-2005		7.500%		NY - 75.00%		360		01-Mar-2005
105591226 1			60,000.00		59,754.69		01-May-2005		9.450%		TN - 70.59%		360		01-Mar-2005
105725485 1			129,000.00		128,572.54		01-Apr-2005		10.450%		IL - 60.00%		360		01-Mar-2005
105845929 1			73,800.00		73,591.46		01-May-2005		10.550%		SC - 60.00%		360		01-Apr-2005
106544406 1			63,750.00		63,426.69		01-Apr-2005		8.600%		WA - 75.00%		360		01-Mar-2005
106581960 1			62,000.00		61,839.20		01-May-2005		10.950%		NY - 62.63%		360		01-Apr-2005
108424748 1			61,020.00		60,834.67		01-Apr-2005		10.300%		IL - 58.11%		360		01-Apr-2005
109357806 1			115,500.00		115,219.23		01-May-2005		11.250%		NY - 75.00%		360		01-Apr-2005
110750866 1			187,000.00		185,998.47		01-May-2005		7.450%		IL - 82.74%		360		01-Apr-2005
110915741 1			408,000.00		405,862.40		01-May-2005		6.750%		MA - 84.86%		360		01-May-2005
111241709 1			89,500.00		89,168.86		01-May-2005		8.500%		TX - 74.58%		360		01-May-2005
111364725 1			60,000.00		59,125.31		01-May-2005		10.600%		TX - 63.16%		180		01-May-2005
111464327 1			195,000.00		194,514.50		01-Jun-2005		10.400%		IL - 75.00%		360		01-May-2005
112060702 1			147,720.00		147,184.46		01-May-2005		8.600%		WA - 72.06%		360		01-May-2005
112189782 1			130,900.00		130,505.94		01-May-2005		9.500%		MI - 85.00%		360		01-May-2005
112670542 1			276,250.00		275,409.69		01-Apr-2005		9.450%		OK - 85.00%		360		01-May-2005
112906268 1			90,500.00		90,197.10		01-Apr-2005		8.990%		NJ - 51.71%		360		01-May-2005
113126007 1			187,500.00		186,935.57		01-Jun-2005		8.600%		TX - 75.00%		360		01-Jun-2005
113151708 1			320,000.00		318,886.48		01-May-2005		8.800%		CA - 80.00%		360		01-May-2005
113515241 1			114,750.00		114,445.47		01-Apr-2005		10.100%		FL - 85.00%		360		01-May-2005
113560668 1			189,000.00		188,400.64		01-May-2005		9.250%		MA - 90.00%		360		01-May-2005
113720403 1			82,500.00		82,158.83		01-May-2005		7.950%		FL - 75.00%		360		01-May-2005
113782908 1			264,800.00		264,058.21		01-May-2005		8.950%		CT - 80.00%		360		01-Jun-2005
113866669 1			238,000.00		237,023.72		01-May-2005		7.990%		NY - 52.31%		360		01-May-2005
114016249 1			279,000.00		278,186.07		01-May-2005		9.650%		NY - 90.00%		360		01-May-2005
114255482 1			93,600.00		93,353.59		01-Jun-2005		9.250%		TX - 80.00%		360		01-Jun-2005
114348204 1			170,500.00		170,032.98		01-May-2005		9.950%		IL - 70.46%		360		01-May-2005
114945066 1			111,600.00		111,228.11		01-May-2005		8.100%		OH - 90.00%		360		01-Jun-2005
115102048 1			69,000.00		68,827.59		01-May-2005		9.500%		MO - 75.00%		360		01-Jun-2005
115242349 1			97,500.00		97,190.80		01-May-2005		9.250%		CA - 65.00%		360		01-May-2005
115693525 1			195,000.00		194,512.75		01-Jun-2005		9.500%		IL - 65.00%		360		01-Jun-2005
117996868 1			127,500.00		127,267.98		01-May-2005		10.990%		MN - 75.00%		360		01-Jun-2005
118798784 1			160,200.00		159,881.04		01-Jun-2005		9.500%		FL - 60.00%		360		01-Jul-2005
120167580 1			60,000.00		59,903.34		01-Jun-2005		10.500%		NC - 49.59%		360		01-Jul-2005
120435805 1			285,000.00		285,000.00		01-Jun-2005		7.850%		NJ - 73.08%		360		01-Jul-2005
121009203 1			72,850.00		72,629.51		01-Jun-2005		7.450%		KS - 68.73%		360		01-Jul-2005
111317988 2			132,000.00		131,743.51		01-May-2005		11.550%		WI - 60.00%		360		01-May-2005
112118062 2			400,500.00		398,167.93		01-May-2005		6.200%		MD - 90.00%		360		01-May-2005
112986583 2			60,000.00		59,878.22		01-Apr-2005		11.350%		NY - 80.00%		360		01-May-2005
114549140 2			60,000.00		59,882.12		01-May-2005		11.500%		IN - 75.00%		360		01-May-2005
114561244 2			544,500.00		542,928.06		01-Apr-2005		9.700%		CA - 90.00%		360		01-May-2005


TOTAL			7,377,240.00		7,350,935.40


Page 16 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
Prepayment Report

VOLUNTARY PREPAYMENTS


											Group 2		Group 1		Total




Current


Number of Paid in Full Loans										37		254		291
Number of Repurchased Loans										0		1		1
Total Number of Loans Prepaid in Full										37		255		292
Curtailments Amount										20,855.76		123,637.28		144,493.04
Paid in Full Balance										14,435,614.16		45,430,995.82		59,866,609.98
Repurchased Loans Balance										0.00		129,490.26		129,490.26
Total Prepayment Amount										14,456,469.92		45,684,123.36		60,140,593.28

Cumulative


Number of Paid in Full Loans										140		775		915
Number of Repurchased Loans										1		63		64
Total Number of Loans Prepaid in Full										141		838		979
Paid in Full Balance										54,847,719.70		140,006,120.72		194,853,840.42
Repurchased Loans Balance										461,783.68		10,233,593.11		10,695,376.79
Curtailments Amount										128,253.63		644,329.78		772,583.41
Total Prepayment Amount										55,437,757.01		150,884,043.61		206,321,800.62










Page 17 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

VOLUNTARY PREPAYMENTS RATES


											Group 2		Group 1		Total



SMM										4.21%		3.04%		3.26%
3 Months Avg SMM										4.05%		2.47%		2.77%
12 Months Avg SMM										3.11%		2.01%		2.21%
Avg SMM Since Cut-off										3.11%		2.01%		2.21%


CPR										40.29%		30.95%		32.78%
3 Months Avg CPR										39.11%		25.94%		28.62%
12 Months Avg CPR										31.55%		21.58%		23.56%
Avg CPR Since Cut-off										31.55%		21.58%		23.56%


PSA										3,531.26%		2,667.18%		2,833.93%
3 Months Avg PSA Approximation										4,147.71%		2,696.48%		2,985.72%
12 Months Avg PSA Approximation										4,140.98%		2,768.63%		3,036.22%
Avg PSA Since Cut-off Approximation										4,140.98%		2,768.62%		3,036.22%










Page 18 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution






PREPAYMENT CALCULATION METHODOLOGY

Single Monthly Mortality (SMM): (Voluntary partial and full prepayments + Repurchases + Liquidations )/(Beg Principal Balance - Sched Principal) Conditional Prepayment Rate (CPR): 1-((1-SMM)^12) PSA Standard Prepayment Model: CPR/(0.002min(30,WAS)) Average SMM over period between nth month and mth month (AvgSMMn,m): [(1-SMMn)(1-SMMn+1)...(1-SMMm)]^(1/months in period n,m) Conditional Prepayment Rate (CPR): 1-((1-SMM)^12) Average PSA Approximation over period between the nth month and mth month: AvgCPRn,m/(0.002*Avg WASn,m)) Average WASn,m: (min(30,WASn)+min(30,WASn+1)+...+min(30,WASm)/(number of months in the period n,m) Weighted Average Seasoning (WAS) Dates correspond to distribution dates. Note: Prepayment rates are calculated since deal issue date and include partial and full voluntary prepayments, liquidations, and repurchases.













Page 19 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
Prepayment Detail Report
Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First


&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

98760044 1			177,500.00		176,483.95			14-Sep-2005		8.400%		NJ - 52.67%		Paid Off - 360		01-Jan-2005


98800980 2			393,750.00		391,789.55			28-Sep-2005		9.650%		FL - 75.00%		Paid Off - 360		01-Jan-2005

100220268 1			337,500.00		335,402.45			30-Sep-2005		7.990%		FL - 90.00%		Paid Off - 360		01-Jan-2005

100268705 1			330,000.00		327,503.02			15-Sep-2005		6.990%		NY - 75.48%		Paid Off - 360		01-Jan-2005

102368503 1			308,700.00		306,693.30			05-Oct-2005		7.150%		CA - 79.15%		Paid Off - 360		01-Feb-2005

103433884 1			224,280.00		222,658.25			05-Oct-2005		6.600%		FL - 90.00%		Paid Off - 360		01-Feb-2005

103523965 1			194,000.00		192,420.60			03-Oct-2005		5.990%		CA - 53.99%		Paid Off - 360		01-Feb-2005

103863841 2			491,250.00		489,164.86			20-Sep-2005		8.600%		CO - 75.00%		Paid Off - 360		01-Mar-2005

103912762 1			164,800.00		162,715.21			30-Sep-2005		7.650%		MD - 79.92%		Paid Off - 240		01-Mar-2005

104398540 1			113,200.00		112,081.73			23-Sep-2005		7.250%		SC - 86.41%		Paid Off - 300		01-Feb-2005

104426846 1			209,000.00		207,598.45			15-Sep-2005		6.990%		NJ - 87.08%		Paid Off - 360		01-Feb-2005

104608161 1			122,636.00		121,127.60			13-Sep-2005		9.250%		FL - 79.00%		Paid Off - 360		01-Mar-2005

105001747 1			226,500.00		225,865.10			04-Oct-2005		10.800%		IL - 75.00%		Paid Off - 360		01-Mar-2005

105144745 1			225,801.00		224,263.01			28-Sep-2005		6.200%		WA - 57.94%		Paid Off - 360		01-Mar-2005

105396121 1			162,000.00		159,756.99			30-Sep-2005		8.150%		MN - 73.64%		Paid Off - 360		01-Mar-2005

105399265 1			126,004.00		125,595.36			16-Sep-2005		9.900%		FL - 84.00%		Paid Off - 360		01-Mar-2005

105463764 1			121,000.00		120,658.04			30-Sep-2005		10.550%		PA - 89.63%		Paid Off - 360		01-Mar-2005

105493167 2			374,000.00		371,899.79			06-Oct-2005		7.200%		NY - 85.00%		Paid Off - 360		01-Mar-2005

105517288 1			66,500.00		66,260.55			29-Sep-2005		9.400%		MI - 78.24%		Paid Off - 360		01-Mar-2005

105541502 1			207,500.00		206,357.45			27-Sep-2005		7.300%		WI - 84.69%		Paid Off - 360		01-Mar-2005

105581581 1			68,850.00		68,536.23			26-Sep-2005		8.250%		NY - 85.00%		Paid Off - 360		01-Mar-2005

105582423 1			144,900.00		144,212.60			03-Oct-2005		8.050%		SC - 90.00%		Paid Off - 360		01-Mar-2005

105691927 1			68,850.00		68,612.24			28-Sep-2005		9.600%		FL - 59.87%		Paid Off - 360		01-Mar-2005

105921480 1			292,500.00		291,278.33			05-Oct-2005		7.900%		ME - 90.00%		Paid Off - 360		01-Apr-2005

106109002 2			499,990.00		497,824.07			30-Sep-2005		8.500%		CA - 74.07%		Paid Off - 360		01-Mar-2005

106215320 1			125,000.00		124,180.41			27-Sep-2005		6.400%		MA - 56.46%		Paid Off - 360		01-Mar-2005

106221203 1			100,000.00		99,155.27			07-Oct-2005		8.150%		FL - 65.36%		Paid Off - 360		01-Mar-2005

106225428 1			120,000.00		119,469.50			05-Oct-2005		8.400%		FL - 80.00%		Paid Off - 360		01-Mar-2005

106285364 1			288,000.00		286,037.06			07-Oct-2005		6.350%		CA - 76.75%		Paid Off - 360		01-Mar-2005

106565062 1			152,055.00		150,771.18			28-Sep-2005		8.150%		FL - 90.00%		Paid Off - 360		01-Mar-2005

106707581 2			632,080.00		629,530.75			23-Sep-2005		8.850%		NY - 52.67%		Paid Off - 360		01-Mar-2005

106800741 1			201,134.00		200,308.98			21-Sep-2005		7.990%		WA - 80.00%		Paid Off - 360		01-Apr-2005

106854367 1			262,000.00		260,557.30			13-Sep-2005		7.300%		CA - 69.50%		Paid Off - 360		01-Mar-2005

106973001 1			151,000.00		149,929.73			04-Oct-2005		5.990%		MA - 47.19%		Paid Off - 360		01-Mar-2005

106983141 1			91,000.00		87,716.43			21-Sep-2005		9.750%		MA - 13.89%		Paid Off - 120		01-Mar-2005

107122301 1			77,985.00		77,762.16			05-Oct-2005		9.750%		FL - 59.99%		Paid Off - 360		01-Apr-2005

107251688 1			188,800.00		187,729.35			04-Oct-2005		7.150%		NJ - 69.39%		Paid Off - 360		01-Mar-2005



Page 20 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First


&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

107334302 1			60,500.00		60,262.87			20-Sep-2005		8.990%		FL - 65.80%		Paid Off - 360		01-Mar-2005


107602849 2			392,500.00		390,148.43			21-Sep-2005		6.050%		CA - 78.50%		Paid Off - 360		01-Apr-2005

107643504 1			93,000.00		92,540.71			04-Oct-2005		7.850%		CA - 71.54%		Paid Off - 360		01-Mar-2005

107896821 1			122,500.00		121,929.20			22-Sep-2005		7.350%		MN - 70.00%		Paid Off - 360		01-Apr-2005

108124645 2			535,500.00		533,545.96			13-Sep-2005		7.650%		CA - 90.00%		Paid Off - 360		01-May-2005

108213802 1			174,000.00		173,606.55			21-Sep-2005		10.850%		FL - 75.00%		Paid Off - 360		01-Apr-2005

108229501 2			364,500.00		363,205.36			26-Sep-2005		8.700%		WI - 90.00%		Paid Off - 360		01-Apr-2005

108291865 2			370,405.00		368,746.16			06-Oct-2005		7.550%		CA - 90.00%		Paid Off - 360		01-Apr-2005

108399247 1			73,000.00		72,643.33			19-Sep-2005		8.800%		FL - 62.93%		Paid Off - 360		01-Apr-2005

108437963 1			84,500.00		84,061.55			07-Oct-2005		6.800%		PA - 83.66%		Paid Off - 360		01-Apr-2005

108456021 1			261,000.00		259,329.41			06-Oct-2005		5.800%		CA - 54.96%		Paid Off - 360		01-Apr-2005

108491663 1			144,000.00		143,621.89			13-Sep-2005		10.150%		MD - 52.56%		Paid Off - 360		01-Apr-2005

108859026 1			262,500.00		261,967.29			21-Sep-2005		11.350%		NY - 75.00%		Paid Off - 360		01-Apr-2005

109074583 1			100,875.00		100,531.11			03-Oct-2005		8.900%		CA - 75.00%		Paid Off - 360		01-Apr-2005

109085985 1			138,000.00		137,688.97			27-Sep-2005		9.990%		WI - 83.64%		Paid Off - 360		01-May-2005

109115329 1			211,000.00		210,293.90			27-Sep-2005		8.990%		CA - 57.81%		Paid Off - 360		01-Apr-2005

109152223 1			142,750.00		142,009.30			20-Sep-2005		6.800%		IL - 83.97%		Paid Off - 360		01-Apr-2005

109219865 1			231,000.00		230,267.41			29-Sep-2005		9.250%		MD - 84.00%		Paid Off - 360		01-Apr-2005

109316182 1			180,000.00		179,469.35			03-Oct-2005		9.600%		NJ - 60.00%		Paid Off - 360		01-Apr-2005

109441006 1			279,000.00		277,703.58			21-Sep-2005		7.990%		FL - 90.00%		Paid Off - 360		01-Apr-2005

109872523 1			217,000.00		216,318.95			30-Sep-2005		9.300%		NJ - 58.65%		Paid Off - 360		01-Apr-2005

109885004 1			171,500.00		#######			30-Sep-2005		6.250%		FL - 65.18%		Paid Off - 360		01-May-2005

109940585 1			302,400.00		300,887.90			26-Sep-2005		6.990%		CA - 90.00%		Paid Off - 360		01-Apr-2005

109980300 1			179,441.00		178,835.51			29-Sep-2005		8.950%		NY - 65.25%		Paid Off - 360		01-Apr-2005

110012507 1			310,000.00		308,211.97			15-Sep-2005		6.250%		MA - 52.72%		Paid Off - 360		01-Apr-2005

110015864 1			244,500.00		243,103.20			19-Sep-2005		6.300%		TX - 77.62%		Paid Off - 360		01-Apr-2005

110093747 1			176,400.00		175,632.47			27-Sep-2005		7.700%		FL - 90.00%		Paid Off - 360		01-Apr-2005

110128964 1			121,000.00		120,574.60			03-Oct-2005		8.750%		GA - 78.07%		Paid Off - 360		01-Apr-2005

110140662 2			449,500.00		448,513.90			07-Oct-2005		10.990%		NY - 74.92%		Paid Off - 360		01-Apr-2005

110143484 1			104,250.00		103,954.94			30-Sep-2005		8.900%		WA - 75.00%		Paid Off - 360		01-May-2005

110233004 1			76,000.00		75,773.55			07-Oct-2005		9.550%		SC - 62.30%		Paid Off - 360		01-Apr-2005

110250446 1			198,750.00		197,960.56			15-Sep-2005		8.150%		NJ - 75.00%		Paid Off - 360		01-Apr-2005

110251584 1			162,000.00		161,362.99			30-Sep-2005		8.200%		AZ - 90.00%		Paid Off - 360		01-Apr-2005

110254646 1			266,206.00		264,533.99			29-Sep-2005		5.800%		MA - 86.76%		Paid Off - 360		01-Apr-2005

110398724 1			101,965.00		101,644.65			06-Oct-2005		9.300%		MI - 59.28%		Paid Off - 360		01-Apr-2005

110409042 1			215,000.00		214,372.41			15-Sep-2005		8.750%		NY - 50.59%		Paid Off - 360		01-May-2005

110419686 1			75,600.00		75,367.74			05-Oct-2005		8.500%		PA - 60.00%		Paid Off - 360		01-May-2005

110425808 1			171,680.00		170,872.56			28-Sep-2005		6.350%		MD - 74.00%		Paid Off - 360		01-May-2005



Page 21 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First


&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

110514064 1			103,500.00		103,118.74			05-Oct-2005		7.600%		WI - 89.22%		Paid Off - 360		01-May-2005


110606647 1			140,250.00		139,780.65			19-Sep-2005		8.990%		AZ - 85.00%		Paid Off - 360		01-Apr-2005

110689866 1			207,900.00		207,126.53			12-Sep-2005		7.550%		CA - 90.00%		Paid Off - 360		01-May-2005

110702487 1			109,500.00		109,180.37			05-Oct-2005		8.750%		TX - 75.00%		Paid Off - 360		01-May-2005

110764982 2			360,500.00		359,219.55			04-Oct-2005		8.700%		CA - 70.00%		Paid Off - 360		01-Apr-2005

110864188 2			556,750.00		555,495.15			29-Sep-2005		9.990%		NJ - 85.00%		Paid Off - 360		01-May-2005

110864543 2			184,800.00		184,541.91			07-Oct-2005		12.200%		NJ - 60.00%		Paid Off - 360		01-May-2005

110874047 1			117,900.00		117,456.98			05-Oct-2005		7.500%		AZ - 90.00%		Paid Off - 360		01-May-2005

110879863 2			415,500.00		413,525.94			30-Sep-2005		6.700%		CA - 82.28%		Paid Off - 360		01-May-2005

110916905 1			75,778.00		75,522.28			27-Sep-2005		8.950%		VT - 33.83%		Paid Off - 360		01-Apr-2005

111134581 1			247,499.00		246,586.86			26-Sep-2005		7.600%		WA - 88.39%		Paid Off - 360		01-May-2005

111149902 1			297,000.00		295,861.69			16-Sep-2005		7.400%		CA - 87.35%		Paid Off - 360		01-May-2005

111187464 1			191,000.00		190,206.44			26-Sep-2005		6.990%		FL - 84.51%		Paid Off - 360		01-May-2005

111216149 1			160,000.00		159,555.47			05-Oct-2005		8.990%		WI - 70.49%		Paid Off - 360		01-May-2005

111221628 1			234,000.00		232,981.26			07-Oct-2005		6.750%		NJ - 86.67%		Paid Off - 360		01-May-2005

111360228 2			176,000.00		175,203.43			19-Sep-2005		6.550%		CA - 80.00%		Paid Off - 360		01-May-2005

111467460 1			86,000.00		85,626.14			03-Oct-2005		7.900%		OR - 36.21%		Paid Off - 360		01-May-2005

111483327 1			96,721.00		96,474.04			30-Sep-2005		9.450%		CA - 59.34%		Paid Off - 360		01-May-2005

111503660 1			212,500.00		211,601.45			07-Oct-2005		6.900%		NV - 63.43%		Paid Off - 360		01-May-2005

111563904 1			251,000.00		250,144.90			22-Sep-2005		7.990%		CA - 59.76%		Paid Off - 360		01-May-2005

111604344 1			142,800.00		142,309.54			16-Sep-2005		7.950%		MD - 85.00%		Paid Off - 360		01-May-2005

111650206 1			153,000.00		152,527.67			15-Sep-2005		7.350%		AZ - 88.95%		Paid Off - 360		01-Jun-2005

111672606 2			411,000.00		409,839.40			22-Sep-2005		7.800%		GA - 79.04%		Paid Off - 360		01-Jun-2005

111720389 1			176,000.00		175,180.14			22-Sep-2005		6.400%		CA - 80.00%		Paid Off - 360		01-May-2005

111732244 1			156,500.00		155,923.54			19-Sep-2005		7.600%		CA - 84.60%		Paid Off - 360		01-May-2005

111736088 1			168,000.00		167,494.31			27-Sep-2005		8.600%		AZ - 86.15%		Paid Off - 360		01-May-2005

111744827 1			186,300.00		185,487.20			29-Sep-2005		6.950%		AZ - 90.00%		Paid Off - 360		01-May-2005

111750105 1			277,100.00		276,155.92			07-Oct-2005		7.990%		OR - 85.00%		Paid Off - 360		01-May-2005

111778007 1			84,000.00		83,823.78			30-Sep-2005		9.250%		TN - 60.00%		Paid Off - 360		01-Jun-2005

111807749 2			396,000.00		393,211.89			21-Sep-2005		8.250%		MD - 87.21%		Paid Off - 360		01-May-2005

111809182 1			128,000.00		127,489.66			04-Oct-2005		7.200%		DC - 55.65%		Paid Off - 360		01-May-2005

111817086 1			202,125.00		201,592.90			15-Sep-2005		9.250%		MD - 82.50%		Paid Off - 360		01-May-2005

111823340 1			162,500.00		162,217.42			30-Sep-2005		11.200%		TX - 65.00%		Paid Off - 360		01-May-2005

111829586 1			60,000.00		59,516.93			20-Sep-2005		10.100%		IL - 48.39%		Paid Off - 360		01-May-2005

111830089 1			149,250.00		148,928.15			03-Oct-2005		10.200%		IL - 75.00%		Paid Off - 360		01-May-2005

111844205 1			131,000.00		130,462.09			12-Sep-2005		7.050%		MD - 76.61%		Paid Off - 360		01-May-2005

111899944 1			148,972.00		144,465.11			03-Oct-2005		6.350%		PA - 80.53%		Paid Off - 120		01-May-2005

111966248 1			137,000.00		136,484.84			12-Sep-2005		7.500%		VT - 81.55%		Paid Off - 360		01-May-2005



Page 22 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First


&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

111975744 1			220,000.00		219,250.50			29-Sep-2005		7.990%		NY - 80.00%		Paid Off - 360		01-May-2005


112014360 1			187,000.00		186,161.83			29-Sep-2005		6.600%		CA - 85.00%		Paid Off - 360		01-May-2005

112026927 1			175,125.00		174,460.41			28-Sep-2005		7.450%		NY - 46.09%		Paid Off - 360		01-May-2005

112070404 1			315,000.00		314,022.31			04-Oct-2005		8.450%		NY - 75.00%		Paid Off - 360		01-May-2005

112077029 1			350,989.00		348,973.01			29-Sep-2005		6.450%		SC - 86.66%		Paid Off - 360		01-May-2005

112093489 1			242,250.00		241,357.66			29-Sep-2005		7.600%		RI - 85.00%		Paid Off - 360		01-May-2005

112123104 1			136,000.00		135,638.24			20-Sep-2005		9.200%		GA - 80.00%		Paid Off - 360		01-May-2005

112196563 1			108,750.00		108,439.00			03-Oct-2005		8.850%		FL - 75.00%		Paid Off - 360		01-May-2005

112210380 1			322,500.00		321,951.29			12-Sep-2005		11.300%		NJ - 75.00%		Paid Off - 360		01-May-2005

112230800 1			268,000.00		266,791.50			03-Oct-2005		6.990%		CA - 62.33%		Paid Off - 360		01-May-2005

112267125 1			168,750.00		168,331.64			03-Oct-2005		9.850%		FL - 75.00%		Paid Off - 360		01-May-2005

112332242 1			160,000.00		159,508.41			19-Sep-2005		8.500%		DC - 44.44%		Paid Off - 360		01-May-2005

112333620 1			175,000.00		174,234.24			06-Oct-2005		6.750%		CO - 80.65%		Paid Off - 360		01-May-2005

112377569 1			100,001.00		99,028.73			26-Sep-2005		6.990%		FL - 79.37%		Paid Off - 240		01-May-2005

112393905 2			386,750.00		385,984.50			22-Sep-2005		10.600%		NY - 85.00%		Paid Off - 360		01-May-2005

112427208 1			82,500.00		82,353.40			27-Sep-2005		11.100%		NJ - 44.60%		Paid Off - 360		01-May-2005

112435284 1			76,000.00		75,784.88			12-Sep-2005		8.900%		MD - 80.00%		Paid Off - 360		01-May-2005

112451802 1			180,000.00		179,368.23			03-Oct-2005		7.850%		CA - 68.97%		Paid Off - 360		01-May-2005

112458500 1			280,000.00		279,182.66			28-Sep-2005		8.750%		NJ - 86.68%		Paid Off - 360		01-May-2005

112486220 1			227,000.00		225,847.83			03-Oct-2005		5.950%		NH - 70.94%		Paid Off - 360		01-May-2005

112502208 1			75,499.00		75,337.96			06-Oct-2005		10.250%		GA - 28.49%		Paid Off - 360		01-May-2005

112568167 1			165,000.00		164,410.00			26-Sep-2005		6.600%		FL - 86.84%		Paid Off - 360		01-Jun-2005

112620869 1			303,000.00		301,927.59			07-Oct-2005		7.800%		CA - 69.66%		Paid Off - 360		01-May-2005

112631700 2			153,000.00		151,890.37			16-Sep-2005		11.750%		CO - 85.00%		Paid Off - 360		01-May-2005

112686266 2			460,000.00		458,271.58			07-Oct-2005		7.500%		CT - 46.00%		Paid Off - 360		01-May-2005

112724240 1			264,000.00		263,353.99			16-Sep-2005		9.600%		NV - 56.17%		Paid Off - 360		01-May-2005

112730148 1			93,750.00		93,527.71			30-Sep-2005		9.750%		MD - 75.00%		Paid Off - 360		01-May-2005

112748967 1			72,800.00		72,652.74			30-Sep-2005		10.500%		MI - 65.00%		Paid Off - 360		01-May-2005

112760285 1			168,230.00		167,392.19			27-Sep-2005		6.050%		NH - 66.76%		Paid Off - 360		01-May-2005

112794987 1			200,000.00		199,299.21			16-Sep-2005		7.850%		NY - 72.73%		Paid Off - 360		01-May-2005

112883905 1			171,200.00		170,566.69			28-Sep-2005		6.750%		GA - 80.00%		Paid Off - 360		01-Jun-2005

112892781 1			195,000.00		194,507.64			06-Oct-2005		9.450%		NJ - 79.59%		Paid Off - 360		01-May-2005

112920749 1			79,000.00		78,812.66			29-Sep-2005		9.750%		NJ - 50.97%		Paid Off - 360		01-May-2005

112973029 1			256,500.00		255,536.21			03-Oct-2005		7.500%		CA - 90.00%		Paid Off - 360		01-May-2005

112984760 1			100,000.00		99,722.16			03-Oct-2005		8.990%		RI - 55.56%		Paid Off - 360		01-May-2005

113013163 1			370,000.00		368,292.99			03-Oct-2005		6.450%		NJ - 77.90%		Paid Off - 360		01-May-2005

113027627 1			221,250.00		219,576.34			20-Sep-2005		8.600%		MD - 75.00%		Paid Off - 360		01-May-2005

113088900 1			79,000.00		78,451.33			22-Sep-2005		8.400%		TN - 82.29%		Paid Off - 360		01-May-2005



Page 23 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First


&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

113116628 1			108,000.00		107,586.03			26-Sep-2005		7.400%		CA - 52.68%		Paid Off - 360		01-May-2005


113118020 1			227,800.00		227,319.23			05-Oct-2005		10.300%		MD - 85.00%		Paid Off - 360		01-May-2005

113205504 1			330,000.00		329,056.34			12-Sep-2005		8.850%		AZ - 75.00%		Paid Off - 360		01-May-2005

113209522 1			211,627.00		210,906.03			29-Sep-2005		7.990%		FL - 86.38%		Paid Off - 360		01-May-2005

113210181 1			245,000.00		244,354.13			29-Sep-2005		9.250%		NY - 60.49%		Paid Off - 360		01-May-2005

113210322 1			214,000.00		213,335.80			16-Sep-2005		8.450%		CA - 82.31%		Paid Off - 360		01-May-2005

113236087 1			131,992.00		131,625.29			03-Oct-2005		8.990%		CA - 57.39%		Paid Off - 360		01-May-2005

113256804 1			64,000.00		63,038.12			07-Oct-2005		7.700%		ME - 51.20%		Paid Off - 180		01-May-2005

113320089 1			251,200.00		250,572.33			12-Sep-2005		9.500%		CA - 84.58%		Paid Off - 360		01-May-2005

113380240 1			120,000.00		119,472.44			27-Sep-2005		6.700%		CA - 53.33%		Paid Off - 360		01-May-2005

113397483 1			283,750.00		283,084.27			13-Sep-2005		9.800%		AZ - 54.25%		Paid Off - 360		01-May-2005

113399224 1			142,800.00		142,279.19			03-Oct-2005		7.650%		MD - 85.00%		Paid Off - 360		01-May-2005

113407704 1			131,750.00		131,399.52			19-Sep-2005		9.200%		MD - 85.00%		Paid Off - 360		01-May-2005

113423560 1			116,200.00		115,803.41			05-Oct-2005		7.990%		FL - 72.63%		Paid Off - 360		01-May-2005

113431464 1			285,000.00		284,106.37			13-Sep-2005		8.400%		CA - 74.03%		Paid Off - 360		01-May-2005

113432702 2			135,400.00		135,008.77			28-Sep-2005		8.800%		FL - 87.36%		Paid Off - 360		01-May-2005

113437586 1			64,900.00		64,768.75			16-Sep-2005		10.500%		FL - 55.00%		Paid Off - 360		01-May-2005

113487722 1			223,500.00		222,223.86			05-Oct-2005		5.850%		CA - 85.96%		Paid Off - 360		01-May-2005

113490825 1			190,750.00		190,100.14			30-Sep-2005		7.990%		CA - 58.69%		Paid Off - 360		01-May-2005

113599468 1			273,500.00		272,588.66			27-Sep-2005		8.100%		CA - 60.78%		Paid Off - 360		01-May-2005

113606982 1			326,500.00		325,064.66			12-Sep-2005		6.700%		IL - 86.61%		Paid Off - 360		01-May-2005

113702088 1			233,750.00		232,818.02			14-Sep-2005		7.200%		CA - 85.00%		Paid Off - 360		01-May-2005

113703102 1			262,000.00		261,118.12			06-Oct-2005		8.050%		NJ - 70.81%		Paid Off - 360		01-May-2005

113709885 1			200,000.00		199,202.58			21-Sep-2005		7.200%		MD - 80.00%		Paid Off - 360		01-May-2005

113718308 2			380,000.00		378,771.63			05-Oct-2005		8.250%		NJ - 86.52%		Paid Off - 360		01-May-2005

113788327 1			263,000.00		262,141.18			23-Sep-2005		8.200%		MD - 89.33%		Paid Off - 360		01-May-2005

113797369 1			338,000.00		336,815.62			04-Oct-2005		7.850%		CA - 76.82%		Paid Off - 360		01-May-2005

113826143 1			153,000.00		152,605.54			04-Oct-2005		9.350%		NJ - 70.18%		Paid Off - 360		01-May-2005

113847982 1			286,500.00		285,186.69			23-Sep-2005		6.500%		CA - 44.42%		Paid Off - 360		01-May-2005

113897466 2			705,000.00		703,201.24			16-Sep-2005		9.400%		CA - 83.93%		Paid Off - 360		01-May-2005

113912380 2			429,000.00		427,496.78			14-Sep-2005		7.850%		WA - 75.00%		Paid Off - 360		01-May-2005

113935142 1			132,288.00		131,905.79			30-Sep-2005		8.800%		FL - 76.03%		Paid Off - 360		01-May-2005

113947865 1			145,500.00		145,132.62			16-Sep-2005		9.450%		NY - 72.75%		Paid Off - 360		01-May-2005

114029986 1			253,000.00		252,077.28			30-Sep-2005		7.650%		FL - 88.77%		Paid Off - 360		01-May-2005

114051964 1			136,150.00		135,653.44			06-Oct-2005		7.650%		ME - 84.57%		Paid Off - 360		01-May-2005

114067481 2			481,500.00		480,749.09			19-Sep-2005		10.650%		NC - 90.00%		Paid Off - 360		01-Jun-2005

114098742 1			166,000.00		165,296.96			28-Sep-2005		6.900%		CA - 81.98%		Paid Off - 360		01-May-2005

114148307 1			254,550.00		253,822.08			30-Sep-2005		8.850%		MT - 77.84%		Paid Off - 360		01-May-2005



Page 24 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First


&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

114153166 1			212,000.00		211,286.42			05-Oct-2005		8.050%		CA - 61.45%		Paid Off - 360		01-May-2005


114171788 1			63,000.00		62,824.98			27-Sep-2005		8.990%		PA - 60.00%		Paid Off - 360		01-May-2005

114193220 1			97,750.00		97,382.68			23-Sep-2005		7.500%		FL - 85.00%		Paid Off - 360		01-May-2005

114243165 1			190,000.00		188,522.88			03-Oct-2005		6.450%		ME - 70.90%		Paid Off - 360		01-May-2005

114330525 1			60,112.00		59,537.67			13-Sep-2005		8.990%		FL - 30.83%		Paid Off - 360		01-May-2005

114379324 1			355,870.00		354,114.47			13-Sep-2005		6.100%		CA - 87.50%		Paid Off - 360		01-May-2005

114420045 1			249,999.00		249,406.25			03-Oct-2005		9.750%		CA - 79.14%		Paid Off - 360		01-May-2005

114638109 1			109,112.00		108,636.97			30-Sep-2005		6.750%		FL - 72.74%		Paid Off - 360		01-May-2005

114674021 1			208,000.00		207,362.00			04-Oct-2005		8.600%		MD - 67.10%		Paid Off - 360		01-May-2005

114678949 1			165,000.00		165,000.00			14-Sep-2005		6.400%		DC - 86.84%		Paid Off - 360		01-Jun-2005

114686280 1			171,600.00		171,078.12			03-Oct-2005		8.550%		RI - 60.00%		Paid Off - 360		01-May-2005

114686504 1			75,977.00		75,733.86			14-Sep-2005		8.300%		TN - 52.40%		Paid Off - 360		01-May-2005

114730260 1			155,500.00		154,796.27			23-Sep-2005		6.550%		MA - 43.80%		Paid Off - 360		01-May-2005

114802200 1			328,500.00		327,348.93			05-Oct-2005		7.850%		FL - 86.45%		Paid Off - 360		01-May-2005

114912645 1			165,000.00		164,634.63			14-Sep-2005		8.990%		VT - 75.00%		Paid Off - 360		01-Jun-2005

114955867 1			127,500.00		126,917.40			15-Sep-2005		6.500%		MA - 85.00%		Paid Off - 360		01-May-2005

114957046 1			220,500.00		219,616.80			26-Sep-2005		6.050%		MA - 90.00%		Paid Off - 360		01-Jun-2005

114973704 1			144,500.00		144,181.77			21-Sep-2005		10.100%		IL - 85.00%		Paid Off - 360		01-May-2005

115022949 1			182,000.00		181,270.84			29-Sep-2005		7.650%		MD - 84.65%		Paid Off - 360		01-May-2005

115036683 1			355,000.00		353,377.86			23-Sep-2005		6.500%		PA - 85.42%		Paid Off - 360		01-May-2005

115039281 1			320,000.00		319,056.26			06-Oct-2005		8.700%		NY - 72.73%		Paid Off - 360		01-May-2005

115118721 1			156,000.00		155,773.91			12-Sep-2005		10.990%		NJ - 74.29%		Paid Off - 360		01-Jun-2005

115196206 2			61,500.00		61,426.12			30-Sep-2005		11.850%		AR - 75.00%		Paid Off - 360		01-Jun-2005

115242224 1			60,000.00		59,620.46			04-Oct-2005		8.300%		MO - 54.55%		Paid Off - 360		01-Jun-2005

115436164 1			245,000.00		244,512.18			29-Sep-2005		9.500%		MD - 89.09%		Paid Off - 360		01-Jun-2005

115450249 1			155,200.00		154,856.35			20-Sep-2005		8.990%		MD - 51.73%		Paid Off - 360		01-Jun-2005

115463580 1			140,000.00		139,650.02			27-Sep-2005		8.400%		MD - 48.11%		Paid Off - 360		01-Jun-2005

115594368 1			178,187.00		177,885.36			23-Sep-2005		7.500%		MD - 84.85%		Paid Off - 360		01-Jun-2005

115596025 2			225,000.00		224,701.75			16-Sep-2005		11.400%		NJ - 73.77%		Paid Off - 360		01-Jun-2005

115602344 1			260,000.00		259,590.11			16-Sep-2005		10.600%		HI - 55.91%		Paid Off - 360		01-Jun-2005

115638728 1			74,750.00		74,555.38			06-Oct-2005		8.200%		MD - 78.68%		Paid Off - 360		01-Jun-2005

115641706 1			81,600.00		81,456.84			07-Oct-2005		10.100%		WI - 80.00%		Paid Off - 360		01-Jun-2005

115653685 1			230,000.00		229,436.68			22-Sep-2005		8.500%		RI - 85.19%		Paid Off - 360		01-Jun-2005

115714966 1			90,000.00		89,865.85			28-Sep-2005		10.990%		CT - 75.00%		Paid Off - 360		01-Jun-2005

115725962 1			153,726.00		153,438.63			26-Sep-2005		9.800%		FL - 74.99%		Paid Off - 360		01-Jun-2005

115778946 1			75,000.00		74,865.32			03-Oct-2005		9.990%		AR - 75.00%		Paid Off - 360		01-Jun-2005

115926065 1			60,000.00		59,889.00			14-Sep-2005		9.850%		MD - 75.00%		Paid Off - 360		01-Jun-2005

115939746 1			349,650.00		348,711.64			06-Oct-2005		8.050%		CA - 88.97%		Paid Off - 360		01-Jun-2005



Page 25 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First


&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

116223405 1			100,000.00		99,809.07			03-Oct-2005		9.700%		WI - 35.15%		Paid Off - 360		01-Jun-2005


116355207 1			276,000.00		274,685.75			28-Sep-2005		7.250%		CA - 66.55%		Paid Off - 360		01-Jun-2005

116362203 1			235,000.00		235,000.00			03-Oct-2005		7.500%		NY - 72.31%		Paid Off - 360		01-Jun-2005

116436601 1			225,000.00		224,471.08			04-Oct-2005		8.700%		CA - 52.94%		Paid Off - 360		01-Jun-2005

116547183 1			280,000.00		279,482.07			19-Sep-2005		9.850%		CA - 63.64%		Paid Off - 360		01-Jun-2005

116547605 1			197,800.00		197,139.29			30-Sep-2005		6.950%		MA - 64.87%		Paid Off - 360		01-Jun-2005

116553561 1			112,500.00		112,215.89			27-Sep-2005		8.350%		CA - 64.29%		Paid Off - 360		01-Jun-2005

116717604 1			121,500.00		121,252.95			28-Sep-2005		9.400%		MI - 75.00%		Paid Off - 360		01-Jun-2005

116727645 1			225,500.00		225,499.69			14-Sep-2005		6.250%		CA - 84.68%		Paid Off - 360		01-Jun-2005

116761784 1			247,500.00		247,051.77			05-Oct-2005		9.950%		AZ - 90.00%		Paid Off - 360		01-Jun-2005

116855701 1			129,000.00		128,817.44			04-Oct-2005		11.100%		MI - 60.00%		Paid Off - 360		01-Jun-2005

116875824 1			203,962.00		203,487.46			03-Oct-2005		8.750%		CA - 33.99%		Paid Off - 360		01-Jun-2005

117000448 1			60,000.00		58,762.99			13-Sep-2005		9.250%		MS - 43.17%		Paid Off - 120		01-Jun-2005

117087825 1			287,384.00		287,384.00			06-Oct-2005		6.990%		CA - 52.73%		Paid Off - 360		01-Jun-2005

117165084 1			142,496.00		142,061.25			03-Oct-2005		8.750%		NC - 95.00%		Paid Off - 360		01-Jun-2005

117246041 2			567,000.00		565,652.85			04-Oct-2005		8.800%		MI - 84.63%		Paid Off - 360		01-Jun-2005

117356105 1			254,500.00		254,396.10			21-Sep-2005		7.300%		NJ - 84.83%		Paid Off - 360		01-Jun-2005

117511105 1			216,412.00		216,412.00			04-Oct-2005		6.600%		WA - 84.87%		Paid Off - 360		01-Jun-2005

117708644 2			182,750.00		182,515.55			15-Sep-2005		11.550%		NJ - 85.00%		Paid Off - 360		01-Jun-2005

117962027 1			296,000.00		296,000.00			12-Sep-2005		7.450%		MD - 67.91%		Paid Off - 360		01-Jun-2005

118053842 2			594,000.00		592,469.18			30-Sep-2005		8.250%		AZ - 90.00%		Paid Off - 360		01-Jun-2005

118060441 2			400,000.00		399,492.46			13-Sep-2005		10.250%		CA - 64.31%		Paid Off - 360		01-Jul-2005

118257385 2			452,000.00		450,719.02			12-Sep-2005		6.300%		NC - 45.20%		Paid Off - 360		01-Jul-2005

118287986 1			216,000.00		215,561.40			03-Oct-2005		7.990%		TN - 90.00%		Paid Off - 360		01-Jul-2005

118328947 2			531,000.00		530,394.86			26-Sep-2005		10.750%		CA - 90.00%		Paid Off - 360		01-Jul-2005

118405083 1			157,155.00		156,835.88			05-Oct-2005		7.990%		WI - 88.79%		Paid Off - 360		01-Jul-2005

118787068 1			117,300.00		116,550.70			21-Sep-2005		10.600%		IL - 85.00%		Paid Off - 360		01-Jul-2005

119014868 1			129,750.00		129,408.75			15-Sep-2005		8.150%		ME - 75.00%		Paid Off - 360		01-Jun-2005

119083426 1			63,000.00		62,897.04			29-Sep-2005		9.050%		FL - 60.00%		Paid Off - 360		01-Jul-2005

119123180 1			228,000.00		227,537.03			20-Sep-2005		7.990%		CA - 80.00%		Paid Off - 360		01-Jul-2005

119206449 2			173,000.00		172,571.23			14-Sep-2005		6.990%		WI - 74.57%		Paid Off - 360		01-Jul-2005

119334100 1			299,250.00		298,599.33			28-Sep-2005		7.650%		NJ - 76.73%		Paid Off - 360		01-Jul-2005

119350940 1			108,900.00		108,690.24			05-Oct-2005		8.250%		SD - 90.00%		Paid Off - 360		01-Jul-2005

119370369 1			205,245.00		204,853.66			28-Sep-2005		8.300%		CA - 78.94%		Paid Off - 360		01-Jul-2005

119421824 1			189,000.00		188,654.06			28-Sep-2005		8.500%		WI - 90.00%		Paid Off - 360		01-Jul-2005

119470045 2			379,300.00		378,214.67			04-Oct-2005		6.250%		MA - 80.70%		Paid Off - 360		01-Jul-2005

119502169 1			102,000.00		101,762.19			19-Sep-2005		7.300%		MD - 85.00%		Paid Off - 360		01-Jul-2005

119509289 1			185,000.00		184,760.17			07-Oct-2005		10.150%		IL - 71.43%		Paid Off - 360		01-Jul-2005



Page 26 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution

Prepayment Detail Report - Mortgage Loans Prepaid in Full During Current Distribution
Loan Number			Original							Current		State &		Type Prepayment		First


&		Loan	Principal		Prepayment			Prepayment		Note		LTV at		&		Payment

Loan Group		Status	Balance		Amount			Date		Rate		Origination		Original Term		Date

119661247 1			#######		191,042.95			28-Sep-2005		10.990%		NJ - 75.00%		Paid Off - 360		01-Jul-2005


119805208 1			239,400.00		238,913.87			12-Sep-2005		7.990%		AZ - 90.00%		Paid Off - 360		01-Jul-2005

119824902 1			91,800.00		91,623.16			26-Sep-2005		8.250%		MO - 90.00%		Paid Off - 360		01-Jul-2005

119924629 1			131,750.00		131,525.56			29-Sep-2005		8.850%		CT - 77.50%		Paid Off - 360		01-Jul-2005

119951564 1			115,500.00		115,265.46			12-Sep-2005		7.990%		WI - 86.84%		Paid Off - 360		01-Jul-2005

120151527 1			220,500.00		220,001.04			04-Oct-2005		7.450%		MD - 90.00%		Paid Off - 360		01-Jul-2005

120154968 1			126,000.00		125,757.29			21-Sep-2005		8.250%		WI - 90.00%		Paid Off - 360		01-Jul-2005

120178140 1			118,800.00		118,593.42			14-Sep-2005		8.750%		AZ - 90.00%		Paid Off - 360		01-Jul-2005

120193784 1			152,000.00		151,807.12			23-Sep-2005		10.250%		IL - 73.79%		Paid Off - 360		01-Jul-2005

120208640 1			148,500.00		148,170.59			28-Sep-2005		7.550%		GA - 90.00%		Paid Off - 360		01-Jul-2005

120232665 1			332,000.00		331,578.73			22-Sep-2005		10.250%		FL - 80.00%		Paid Off - 360		01-Jul-2005

120284583 1			106,418.00		106,267.83			28-Sep-2005		9.750%		WI - 85.00%		Paid Off - 360		01-Jul-2005

120328083 1			165,000.00		164,754.59			14-Sep-2005		9.500%		WI - 85.94%		Paid Off - 360		01-Jul-2005

120549001 2			371,000.00		370,270.69			23-Sep-2005		8.150%		CA - 72.75%		Paid Off - 360		01-Jul-2005

120595889 1			450,000.00		450,000.00			28-Sep-2005		8.100%		NY - 77.59%		Paid Off - 360		01-Jul-2005

120712724 1			111,510.00		111,292.98			03-Oct-2005		8.200%		SC - 90.00%		Paid Off - 360		01-Jul-2005

120716022 1			185,000.00		184,772.66			03-Oct-2005		10.400%		IL - 80.44%		Paid Off - 360		01-Jul-2005

120790548 1			67,360.00		67,209.06			07-Oct-2005		7.500%		FL - 44.91%		Paid Off - 360		01-Jul-2005

120975925 1			117,000.00		116,825.98			27-Sep-2005		9.500%		NC - 90.00%		Paid Off - 360		01-Jul-2005

120979109 1			161,100.00		160,760.09			06-Oct-2005		7.800%		IL - 90.00%		Paid Off - 360		01-Jul-2005

121063200 1			133,450.00		133,142.80			06-Oct-2005		8.450%		FL - 74.55%		Paid Off - 360		01-Jul-2005

121126262 1			247,350.00		247,164.43			29-Sep-2005		12.650%		NJ - 85.00%		Paid Off - 360		01-Jul-2005

121208565 1			150,500.00		150,395.38			27-Sep-2005		12.990%		NJ - 70.00%		Paid Off - 360		01-Jul-2005

121267207 1			189,983.00		189,593.58			30-Sep-2005		8.100%		CA - 59.56%		Paid Off - 360		01-Jul-2005

121330161 1			123,000.00		122,796.48			03-Oct-2005		8.990%		MD - 79.87%		Paid Off - 360		01-Jul-2005

121563068 2			411,300.00		410,405.72			03-Oct-2005		7.650%		CA - 90.00%		Paid Off - 360		01-Jul-2005

121624787 1			129,802.00		129,490.26			16-Sep-2005		7.150%		IL - 89.95%		Repur/Subs - 360		01-Jul-2005



TOTAL			60,213,193.00		59,996,100.24



Page 27 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
Realized Loss Report

COLLATERAL REALIZED LOSSES



											Group 2		Group 1		Total


Current




Number of Loans Liquidated										0		0		0
Collateral Principal Realized Loss/(Gain) Amount										0.00		0.00		0.00
Collateral Interest Realized Loss/(Gain) Amount										0.00		0.00		0.00
Net Liquidation Proceeds										0.00		0.00		0.00

Cumulative




Number of Loans Liquidated										0		0		0
Collateral Realized Loss/(Gain) Amount										0.00		0.00		0.00
Net Liquidation Proceeds										0.00		0.00		0.00










Page 28 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution


DEFAULT SPEEDS



											Group 2		Group 1		Total



MDR										0.00%		0.00%		0.00%
3 Months Avg MDR										0.00%		0.00%		0.00%
12 Months Avg MDR										0.00%		0.00%		0.00%
Avg MDR Since Cut-off										0.00%		0.00%		0.00%


CDR										0.00%		0.00%		0.00%
3 Months Avg CDR										0.00%		0.00%		0.00%
12 Months Avg CDR										0.00%		0.00%		0.00%
Avg CDR Since Cut-off										0.00%		0.00%		0.00%


SDA										0.00%		0.00%		0.00%
3 Months Avg SDA Approximation										0.00%		0.00%		0.00%
12 Months Avg SDA Approximation										0.00%		0.00%		0.00%
Avg SDA Since Cut-off Approximation										0.00%		0.00%		0.00%


Loss Severity Approximation for Current Period										0.00%		0.00%		0.00%
3 Months Avg Loss Severity Approximation										0.00%		0.00%		0.00%
12 Months Avg Loss Severity Approximation										0.00%		0.00%		0.00%
Avg Loss Severity Approximation Since Cut-off										0.00%		0.00%		0.00%












Page 29 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution





COLLATERAL REALIZED LOSS CALCULATION METHODOLOGY
	Monthly Default Rate (MDR): (Beg Principal Balance of Liquidated Loans)/(Total Beg Principal Balance)



	Conditional Default Rate (CDR): 1-((1-MDR)^12)

	SDA Standard Default Assumption: CDR/IF(WAS<61,MIN(30,WAS)0.02,MAX(0.03,MIN(30,WAS)0.02-0.0095*(WAS-60)))

	Average MDR over period between nth month and mth month (AvgMDRn,m): [(1-MDRn)(1-MDRn+1)...*(1-MDRm)]^(1/months in period n,m)
	Average CDR over period between the nth month and mth month (AvgCDRn,m): 1-((1-AvgMDRn,m)^12)

	Average SDA Approximation over period between the nth month and mth month:
	AvgCDRn,m/IF(Avg WASn,m<61,MIN(30,Avg WASn,m)0.02,MAX(0.03,MIN(30,Avg WASn,m)0.02-0.0095*(Avg WASn,m-60)))

	Average WASn,m: (WASn + WASn+1 +...+ WASm )/(number of months in the period n,m)
	Loss Severity Approximation for current period: sum(Realized Loss Amount)/sum(Beg Principal Balance of Liquidated Loans)

	Average Loss Severity Approximation over period between nth month and mth month: Avg(Loss Severityn,m)

	Note: Default rates are calculated since deal issue date and include realized gains and additional realized losses and gains from prior periods.
	Dates correspond to distribution dates.




Page 30 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
Realized Loss Detail Report
Loan Number			Current		State &				Prior		Realized				Cumulative

&		Loan	Note		LTV at		Original		Principal		Loss/(Gain)		Realized		Realized

Loan Group		Status	Rate		Origination		Term		Balance		Revision		Loss/(Gain)		Loss/(Gain)





TOTAL



Page 31 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
Triggers and Adj. Cert. Report
TRIGGER EVENTS

										Group 2		Group 1		Total
						Does a Trigger Event Exist? (0=No,1=Yes)								0
						Has a Stepdown Date Occurred? (0=No,1=Yes)								0
						Balances 60+ days includes REO, BKC and FCL								26,076,298.45
						Delinquency Percentage								1.4594%
						Balance of Mezzanine and C Class								244,000,000.00
						Ending Pool Balance								1,786,840,142.39
						Credit Enhancement Percentage (Current Period)								13.6554%
						Credit Enhancement Percentage (Prior Period)								13.2009%
						Does a Sequential Trigger Exist? (0=No,1=Yes)								0



ADJUSTABLE RATE CERTIFICATE INFORMATION

SPACE INTENTIONALLY LEFT BLANK



ADDITIONAL INFORMATION

										Group 2		Group 1		Total
Current LIBOR Rate														3.830000%
Next LIBOR Rate														4.037500%




Page 32 of 33
Ameriquest Mortgage Securities, Inc. 2005-R4

Mortgage Pass-Through Certificates

2005-R4

October 25, 2005 Distribution
Additional Certificate Report

ADDITIONAL CERTIFICATE REPORT

										Next Pass Through Rate			NET WAC Shortfall CarryOver		NET WAC Shortfall Paid
CLASS

			A-1A							4.268%			$0.00		$0.00

			A-1B							4.318%			$0.00		$0.00

			A-2A							4.118%			$0.00		$0.00

			A-2B							4.178%			$0.00		$0.00

			A-2C							4.258%			$0.00		$0.00

			A-2D							4.358%			$0.00		$0.00

			M-1							4.468%			$0.00		$0.00

			M-2							4.488%			$0.00		$0.00

			M-3							4.518%			$0.00		$0.00

			M-4							4.668%			$0.00		$0.00

			M-5							4.688%			$0.00		$0.00

			M-6							4.708%			$0.00		$0.00

			M-7							5.238%			$0.00		$0.00

			M-8							5.338%			$0.00		$0.00

			M-9							5.788%			$0.00		$0.00

			M-10							6.788%			$0.00		$0.00

			M-11							6.788%			$0.00		$0.00

			CE							0.000%			$0.00		$0.00

			P							0.000%			$0.00		$0.00

			R							0.000%			$0.00		$0.00

			SWAP-IO							0.000%			$0.00		$0.00







Page 33 of 33

Asset-Backed Pass-Through Certificates, Series 2005-R4 8-K