OEM-1: Cables for Replacing Factory Head Unit

Installation Instructions for Cables on List "A"

The "A" cable is used when replacing a factory radio. The appropriate cable from list "B" is also required. One end of this cable plugs into or connects to your new aftermarket head unit, and the other end plugs into the 18-pin connector of the OEM-1. When using the complete OEM-1 system, the radio will be current protected by the vehicle fuse. The installer must decide to transfer any other fuses or noise filters from the harness provided with the head unit. Use the wire/terminal identification chart below to locate the correct power wires. The low-level inputs are for radios up to 25 watts x 4.

While every effort has been made to ensure this cable was made to connect properly to your aftermarket head unit, changes in models and configurations do occur. To prevent potential damage, consult your stereo's owner's manual and check wire function (as shown below) with that of the head unit you have. Move any wires that are not in the correct pin location for your head unit.

Wire and Terminal Identification

Output of the OEM-1, 16-pin connector (Cable "B" or AMP-RCA)

Looking into connector / wire side of cable:

WIRE COLOR	CIRCUIT	CIRCUIT	WIRE COLOR
ORANGE	ILLUMINATION	8	16	IGNITION SWITCH 12V	RED
BLUE/WHITE	AMP TRIGGER	7	15	BATTERY	YELLOW
BLACK	GROUND	6	14	RIGHT REAR (-)	PURPLE/BLK
PURPLE/BLK	RIGHT REAR (-)	5	13	POWER ANTENNA	BLUE
GREEN/BLACK	LEFT REAR (-)	4	12	LEFT REAR (+)	GREEN
GRAY/BLACK	RIGHT FRONT (-)	3	11	N/C	GRAY/BLACK
WHITE/BLACK	LEFT FRONT (-)	2	10	RIGHT FRONT (+)	GRAY
	LEFT FRONT (+)	1	9	LEFT FRONT (+)	WHITE

Input of the OEM-1, 18-pin connector (Cable "A" or "C")

Looking into connector / wire side of cable:

WIRE COLOR	CIRCUIT	CIRCUIT	WIRE COLOR
WHITE/BLK	LEFT FRONT (-)	9	18	LEFT FRONT LOW LEVEL (+)	WHITE/RED
GRAY/BLK	RIGHT FRONT (-)	8	17	LEFT FRONT HIGH LEVEL (+)	WHITE
GREEN/BLK	LEFT REAR (-)	7	16	RIGHT FRONT LOW LEVEL (+)	GRAY/RED
PURPLE/BLK	RIGHT REAR (-)	6	15	RIGHT FRONT HIGH LEVEL (+)	GRAY
BLACK	GROUND	5	14	LEFT REAR LOW LEVEL (+)	GREEN/RED
BLUE	POWER ANTENNA	4	13	LEFT REAR HIGH LEVEL (+)	GREEN
ORANGE	ILLUMINATION/DIMMER	3	12	RIGHT REAR LOW LEVEL (+)	PURPLE/RED
BLUE/WHITE	AMP TRIGGER	2	11	RIGHT REAR HIGH LEVEL (+)	PURPLE
RED	IGNITION/SWITCHED	1	10	BATTERY	YELLOW

Diagram Description: A diagram shows the connection between a NEW STEREO, labeled "A" Cable, the OEM-1 unit, FACTORY CABLE, and FACTORY AMPLIFIER.

Installation Instructions for Cables on List "B"

The "B" cable is used when replacing a factory radio. The appropriate cable from list "A" is also required. One end of this cable plugs into the vehicle dash harness that was removed from the factory radio. The AMP-UNV harness must be spliced into the vehicle harness, use the 16-pin chart below for wire identification. The other end plugs into the 16-pin connector of the OEM-1.

Cables for Adding or Replacing Factory Amplifier

Installation Instructions for Cables on List "C"

The "C" cable is used when replacing or adding aftermarket amplifiers to a factory amplified system. The cable model # AMP-RCA is also required. This cable plugs in between the factory radio and the dash harness that was removed from the factory radio. The 18-pin connector then plugs into the OEM-1. The factory system remains unchanged using this cable. The ADD-UNV cable is used for universal connection to the vehicle harness for vehicles not listed (splicing required). Audio should be at a low level when using this cable.

Use the AMP-RCA cable connected to the 16-pin connector of the OEM-1 to connect your aftermarket amplifier. The AMP-RCA provides 2 pair of female RCA jacks and a remote turn-on lead.

Installation Instructions for the AMP-RCA Cable

This cable is used when replacing or adding aftermarket amplifiers to a factory amplified system. The appropriate cable from list "C" is also required. The AMP-RCA cable connects to the 16-pin connector of the OEM-1 and provides 2 pair of female RCA jacks and a remote turn-on lead for connection to your aftermarket amplifier.

Diagram Description: A diagram shows the connection of a FACTORY PREMIUM STEREO, "C" Cable, FACTORY CABLE, FACTORY AMPLIFIER, OEM-1 unit, and NEW AMPLIFIER using the Amp RCA Cable.

ROEM-FRD1 Premium Sound System Interface

This interface allows the replacement of a stereo in the following Ford vehicles with a Mach or JBL premium sound system. The interface is transformer isolated, maintains phase, and is linear from 20 to 20,000 Hz. This 4-channel interface will allow the new stereo's output to be adjusted to the input requirements of the existing factory installed amplifier, providing 2:1 gain and infinite attenuation. The output connector plugs directly into the factory harness. The color-coded input wires are connected to the new stereo's output harness.

For use with:

94-99 Mustang Mach System
89-95 Ford JBL System

About Pacific Accessory Corporation

Since 1976, PAC has been manufacturing high-quality and rock-solid mobile electronics interfaces that satisfy even the most demanding customer. Our patented and award-winning products deliver the performance and functionality you want and deserve. No matter the challenge, our deep engineering and manufacturing knowledge and experience produce solutions you can count on!

Compatibility Information

This product may have specific compatibility requirements to operate correctly in your automobile. Please consult a sales associate or visit www.pac-audio.com to learn whether or not your specific car and/or radio are compatible.

Due to continuous product improvement, Pacific Accessory Corporation reserves the right to make changes to product or specifications described herein without notice.

Contact Information

Pacific Accessory Corporation
Sales: 800-477-2267
Tech Support: 866-931-8021
Website: www.pac-audio.com
Address: 2500 E. Francis St. Ontario, CA 91761

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