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Discussion Starter · #1 ·
I need some help with this one. Ive never done any electrical work like this. Im getting ready to install my navigation (Pioneer avic F90bt) but I want to keep my Onstar . I already have the harness but have no idea where to start installing or even how to install it. My truck has the bose system but im replacing the door speakers,tweeters, and the Hu. I think I have most of the wiring figured out with the 14 pin GM harness, but on the 24 pin harness it says I need to connect a blue/white wire to the amp turn on wire of the aftermarket radio and then to the blue/white wire of the 14 pin harness(How would I connect three wires together?) And then some wires to the Amps positive and negative speaker outputs. So does that mean I will have to run more wire to the amp?

Any help is great.

Heres the manual for the gmos-01

The vehicle is a 2006 chevy silverado 1500 crew cab
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