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4. Connect the black wire to the radio's ground wire.
5. Connect the green wire to the radio's left rear positive speaker output.
6. Connect the green/black wire to the radio's left rear negative speaker output.
7. Connect the purple wire to the radio's right rear positive speaker output.
8. Connect the purple/black wire to the radio's right rear negative speaker output.
9. Tape up the Blue/White wires as they are not used.
FOR AFTERMARKET RADIO AND AMPLIFIER
(See wiring diagram on page 6)
CONNECTIONS TO BE MADE ON THE 14 PIN HARNESS:
1. Connect the red wire to the ignition/accessory wire of the aftermarket radio.
2. Connect the Orange wire to the illumination wire of the aftermarket radio. If the aftermarket radio
has no illumination wire just tape off the orange wire.
3. Connect the blue/white wire to the amp turn on wire of the aftermarket radio
and to the blue/white wire in the 32 pin harness.
4. White NOT USED
5. White/black NOT USED
6. Gray NOT USED
7. Gray/black NOT USED
8. Connect the Brown wire to the mute wire of the aftermarket radio. If the after market radio does not have a
Mute wire, tape up the Brown wire.
The following wires on the 14 pin harness are for the aftermarket radios that have navigation built in:
1. Connect the Green wire to the parking brake wire of the aftermarket navigation radio.
2. Connect the Blue/Pink wire to the VSS or speed sense wire of the aftermarket navigation radio.
3. Connect the Green/Purple wire to the reverse wire of the aftermarket navigation radio.
When completed, plug the 14 pin harness into the GMOS-05.
CONNECTIONS TO BE MADE ON THE 32 PIN GM HARNESS:
1. Connect the yellow wire to the radio's 12 volt battery or memory wire.
2. Connect the black wire to the radio's ground wire.
3. Connect the blue wire to the amp turn on wire of the aftermarket radio and to the blue wire of the 14 pin
harness.
4. Connect the green wire to the amplifier's left rear positive speaker output.
GMOS-05
3
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