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2008 gmc envoy_slt
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Discussion Starter · #1 ·
Hey all, I was looking through some of the post as well as googling trying to find a wire diagram for the radio in a 2008 Envoy (no onstar, no bose, and no steering wheel control) with no luck. I'm using a Metra 70-2003 wiring harness because I don't feel like paying 70-100$ just to hear the chimes. Anyways, the plug in the vehicle has 2 orange wires going into both the A1 and B1 slots. I figure one of them is the 12v constant, but I'm unsure what the other may be.

Also I was hoping someone could direct me to a guide of how to correctly do the install of the 12v ignition/ACC wire.

I'm a bit new to this.
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