User Guide

GMOS-06
2
From the 16-pin harness with stripped leads to the aftermarket radio:
• Connect the (2) Red wires to the accessory wire.
Note: If installing the ASWC-1, there will be an accessory wire in the
12-pin harness to connect as well.
•
Cap off and disregard the Orange/White wire, it will not be used in this application .
• Connect the White wire to the left front positive speaker output.
• Connect the White/Black wire to the left front negative speaker output.
• Connect the Gray wire to the right front positive speaker output.
• Connect the Gray/Black wire to the right front negative speaker output.
• Connect the Green wire to the left rear positive speaker output.
• Connect the Green/Black wire to the left rear negative speaker output.
• Connect the Purple wire to the right rear positive speaker output.
• Connect the Purple/Black wire to the right rear negative speaker output.
• Connect the Blue/White wire to the amp turn-on wire.
Note: This wire must be connected to turn the interface on.
• Connect the Brown wire to the mute wire. If the aftermarket radio does not
have a Mute wire, tape up the Brown wire. If the Brown wire is not connected,
the radio will turn off when OnStar is activated.
Connections to be made
The following wires are for the aftermarket radios that have navigation built in:
• Connect the Light Green wire to the parking brake wire (if applicable).
• Connect the Blue/Pink wire to the speed sense wire (if applicable).
• Connect the Green/Purple wire to the reverse wire (if applicable).
From the GMOS-06 harness to the aftermarket radio:
• Connect the Black wire to the ground wire.
• Connect the Yellow wire to the 12-volt battery wire.
• Connect the Blue wire to the power antenna wire.
• Connect the Orange/White wire to the illumination wire. If the aftermarket
radio has no illumination wire, tape off the Orange/White wire.
• The (3) Black/White wires are to be grounded only if engine noise is present.
• The Black/Yellow wire is for the OnStar volume adjustment. This will be
discussed in the OnStar Level Adjustment section.
12-pin pre-wired ASWC-1 harness:
This harness is to be used along with the optional ASWC-1 (not included) to
retain steering wheel audio controls. If the ASWC-1 is not being used, disregard
this harness. If it will be used, please refer to the ASWC-1 instructions for radio
connections and programming.
Note: Disregard the harness that comes with the ASWC-1.
To the aftermarket radio:
• Connect the Red wire to the accessory wire
• Connect the Green wire to the left rear positive speaker output.
• Connect the Green/Black wire to the left rear negative speaker output.
• Connect the Purple wire to the right rear positive speaker output.
• Connect the Purple/Black wire to the right rear negative speaker output.