Pacific Accessory Corporation - 1502 S. Santa Fe Street, Santa Ana, CA 92705
[email protected] • 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 configurations and system types.
1
) Replacing a premium factory radio with an aftermarket stereo and use the factory amplifier and speakers.
2
) Four channel line out converter for adding amplifiers to a standard factory speaker system.
3
) Adding aftermarket amplifiers to a factory premium amplified system (Bose, JBL, etc.).
4
) Installing a radio with floating ground speaker outputs to a common grounded speaker system like the early Fords.
The OEM-2 also includes a remote turn-on for amplifiers 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
1
LF (+) speaker (high power)
White
6
LF (+) low level output
White/red
2
LF (+) speaker (low power)
White/red
LF (+) common gnd. speaker output
White/black
3
LF (–) common
White/black
7
LF (–) common
Gray
1
RF (+) speaker (high power)
Gray
6
RF (+) low level output
Gray/red
2
RF (+) speaker (low power)
Gray/red
RF (+) common gnd. speaker output
Gray/black
3
RF (–) common
Gray/black
7
RF (–) common
Green
1
LR (+) speaker (high power)
Green
6
LR (+) low level output
Green/red
2
LR (+) speaker (low power)
Green/red
LR (+) common gnd. speaker output
Green/black
3
LR (–) common
Green/black
7
LR (–) common
Violet
1
RR (+) speaker (high power)
Violet
6
RR (+) low level output
Violet/red
2
RR (+) speaker (low power)
Violet/red
RR (+) common gnd. speaker output
Violet/black
3
RR (–) common
Violet/black
7
RR (–) common
Yellow
4
Constant battery
Yellow
Constant battery
Red
4
Switched power
Red
Switched power
Black
4
Gnd. neg. power
Black
Gnd. neg. power
Blue
4
Power antenna turn on
Blue
Power antenna turn on
Blue/white
5
Amplifier remote turn on 0.8 v min.
Blue/white
Amplifier remote turn on 2 amps max.
Orange
4
Illumination dimming
Orange
Illumination dimming
Input wiring colors
Output wiring colors
1
Connect these wires to an aftermarket radio (+) high power speaker output (typically 20 watts x 4 and higher).
2
Connect these wires to an aftermarket radio (+) low power speaker output. (All stereos up to 20 watts x 4 or when wiring for #4)
3
If the radio is high power (floating 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.
4
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.
5
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.
6
For convenience, the positive leads of the RCA are connected internally to these wires.
7
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 Infinity 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 amplifiers. 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 amplifier turn on (blue/white) through the OEM-2 simplifies 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 amplifiers 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
(-)
(+)
(-)
(+)
(-)
(+)
(-)
(+)
LF
LR
RR
RF
Aftermarket stereo
connect blu/wht to new stereo's remote wire
Factory Amplifier
blu/wht amplifier remote turn on
wht & wht/blk
gray & gray/blk
grn & grn/blk
vio & vio/blk
plug removed from factory stereo
In
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