5
GMOS-04
To Vehicle
To Radio
+12v Battery
Fused 5A
SPDT
relay
GMOS-04
87
87a
8685
30
12v remote from
GMOS-04
Blue/White
Cut remote out from GMOS-04.
Connect interface side to
pin 85 on SPDT relay.
(Figure A)
• With all connections completed to the aftermarket radio, plug the 24- and 12-pin
harnesses into the vehicles wiring harnesses.
• Reconnect the negative battery terminal.
• Cycle the key, by turning the ignition on for 30 seconds. Then off and on again
to test the radio.
Installing the GMOS-04
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