2000 Tahoe Onstar pinouts

[MrNybble]

First post.

I have a 2000 Tahoe LT that has an equally old OnStar system. Since everything is non class 2/non Bose, does anyone have or know where I can get the pinouts on the onstar plug(s). I want the Power/power switched, Mono input, Mic wires (+/-) and the Entertainment mute wire. I'm thinking of wiring the motorola HF850 directly thus disabling/stealing these functions from OnStar. I've already removed the buttons from the front panel and will replace them with the motorola kit.

Thanks for any help you can give.
Jeff

 

[Alex33]

I know this is old, but I'm hoping (fingers crossed) that someone has this info or a link that can provide it. I've tried Chiltons and other online diagrams but haven't found what I need.

 

[Alex33]

Just wanted to add that I'm only looking for switched power and ground. Any help is appreciated guys.

 

[Alex33]

I found what I'm looking for! This is so exciting!!

GIFSoup

To the OP, if you're still looking for the wiring diagram, I have a copy I can scan for you.