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Pacic Accessory Corporation - 1502 S. Santa Fe Street, Santa Ana, CA 92705

techsupport@pac-audio.com • Voice: (800) 854-3133 • Fax: (800) 832-9722 • www.pac-audio.com

rev. 06-11-2007

Page 1

The OEM-2 may be used in any one of four possible congurations and system types.

1) Replacing a premium factory radio with an aftermarket stereo and use the factory amplier and speakers.

2) Four channel line out converter for adding ampliers to a standard factory speaker system.

3) Adding aftermarket ampliers to a factory premium amplied system (Bose, JBL, etc.).

4) Installing a radio with oating ground speaker outputs to a common grounded speaker system like the early Fords.

The OEM-2 also includes a remote turn-on for ampliers or a power antenna, providing 2 amps at 12 volts when 0.8 volts or greater is applied to the input side. This

is useful for low voltage triggers like those used in Fords or for automatic triggering when audio is present. The output “turn on” is delayed 1 second to prevent turn

on pops.

OEM – 2

Universal sound system interface and controller

White

LF (+) speaker (high power)

White

LF (+) low level output

White/red

LF (+) speaker (low power) White/red LF (+) common gnd. speaker output

White/black

LF (–) common

White/black

LF (–) common

Gray

RF (+) speaker (high power)

Gray

RF (+) low level output

Gray/red

RF (+) speaker (low power) Gray/red RF (+) common gnd. speaker output

Gray/black

RF (–) common

Gray/black

RF (–) common

Green

LR (+) speaker (high power)

Green

LR (+) low level output

Green/red

LR (+) speaker (low power) Green/red LR (+) common gnd. speaker output

Green/black

LR (–) common

Green/black

LR (–) common

Violet

RR (+) speaker (high power)

Violet

RR (+) low level output

Violet/red

RR (+) speaker (low power) Violet/red RR (+) common gnd. speaker output

Violet/black

RR (–) common

Violet/black

RR (–) common

Yellow

Constant battery Yellow Constant battery

Red

Switched power Red Switched power

Black

Gnd. neg. power Black Gnd. neg. power

Blue

Power antenna turn on Blue Power antenna turn on

Blue/white

Amplifier remote turn on 0.8 v min. Blue/white Amplifier remote turn on 2 amps max.

Orange

Illumination dimming Orange Illumination dimming

Input wiring colors Output wiring colors

Connect these wires to an aftermarket radio (+) high power speaker output (typically 20 watts x 4 and higher).

Connect these wires to an aftermarket radio (+) low power speaker output. (All stereos up to 20 watts x 4 or when wiring for #4)

If the radio is high power (oating ground), connect these wires separately to each of the radio’s speaker (-) wire (do not connect (-) speaker wires together). If the

radio has a common ground speaker outputs, connect these wires together along with the radio’s speaker ground.

These wires go directly through to the outputs for convenience of wiring. The red and black wires supply power to the internal low voltage trigger.

This wire needs only a minimum of 0.8 volts to supply 12 volts on the blue/white wire on the output side of the OEM-2.

For convenience, the positive leads of the RCA are connected internally to these wires.

For convenience, the grounds of the RCA are connected internally to these wires. Not used with common grounded speakers.

Note: Some Chrysler/Dodge vehicles with a Innity premium sound system do not need any interface. If the speakers fade and balance correctly with this interface

installed, but you have very little volume, then you do not need this interface.

Pacific Accessory Corporation

Referring to the wire color chart above, connect the speaker outputs of the new radio to the OEM-2, using the positive, solid color, and the negative black-striped

wires for all four channels. On the output side of the OEM-2 connect the solid color wires (+) and the black-striped wires (-) to the factory harness leading to

the factory ampliers. If there are common audio return wires (-) used in the vehicle for either the front and rear channels then connect the negative outputs of

the OEM-2 to them. If there is only one audio return wire for all four channels connect all the black-striped wires to it. Connecting the constant power (yellow),

switched power (red), ground (black), antenna trigger (blue), illumination (orange), and amplier turn on (blue/white) through the OEM-2 simplies wiring to the

vehicle. The output level controls can be adjusted with a small screwdriver.

1) Replace the factory premium radio with an after market radio/deck and retain the use of the factory ampliers and speakers

OEM-2

Pacific Accessory Corporation - Santa Ana, CA 92705

102.7 FM

wht & wht/blk

gray & gray/blk

grn & grn/blk

vio & vio/blk

(-)

(+)

(-)