The ignition power source of most gm vehicles keep the radio on until one of the doors is opened. Before beginning any of the following disconnect the negative battery terminal to prevent accidental short circuit.

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Gmos 4 wiring diagram. Axxess gmos 04 wiring diagram regarding axxess gmos 04 wiring diagram image size 1024 x 764 px and to view image details please click the image. Metra recommends disconnecting the negative battery terminal before beginning any. Connect the greenpurple wire to the reverse wire of the aftermarket radio. Provides accessory power 12 volt 10 amp retains rap. If the mute wire is not connected the radio will turn off when onstar is activated. If the aftermarket radio has a mute wire connect the brown wire to it.
Gmos 04 gm data interface 2000 2013. Become a dealer to order. Retained accessory power provides. If a wire is populated on the factory wiring harness use that wire instead. Connect the green wire to the parking brake wire of the aftermarket radio. Axxess gmos onstar interface for non amplified gm systems in select gm vehicles check out the axxess gmos owners manualthis specific picture gmos 01 wiring harness axxess gmos troubleshooting wiring in axxess gmos 04 wiring diagram earlier mentioned will be branded with.
A wiring diagram is a streamlined conventional photographic depiction of an electric circuit. How to wire up and prep a new radio dash kit harness and steering wheel adapter duration. Luis porras 29463 views. Here is a picture gallery about axxess gmos 04 wiring diagram complete with the description of the image please find the image you need. This is called the rap. There is an orangewhite wire on the gmos 04 harness also.
The gmos 04 is designed to retain this feature. Connect the bluepink wire to the vss or speed sense wire of the aftermarket radio. Axxess gmos lan gm factory integration interface onstar chime adbox aftermarket stereo installation harness for up gm lan29 vehicles. Gmos 04 2 wiring up the gmos 04 important. Metras gmos 04 gm radio replacement interface lets you replace the factory radio in select onstar equipped 2000 up gm vehicles using the existing wiring and connectors. Connect the brown wire to the mute wire of the aftermarket radio.
Gmos lan 012 wiring diagram installation instructions for part gmos lan caution. Tech docs instructions. Even if you dont subscribe to onstar youll need this adapter to connect an aftermarket stereo. 2006 yukon denali aftermarket stereo install gmos 04 duration. It reveals the parts of the circuit as simplified forms and also the power as well as signal links in between the gadgets. Assortment of gmos 04 wiring diagram.