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    Onstar wiring diagram

    Sorry to resurrect a 10 year old post, but I recently got a 2002 Tahoe and have to replace the stereo. I want to retain as much factory stuff as possible, and the OnStar diagram you posted is the best one I've found. I had thought, and lots of other sites implied, that OnStar is connected to the...
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    2002 Chevy Tahoe LT Audio System Replacement Options

    I forgot to mention it also has OnStar, so I'm guessing I'm losing that by replacing the head unit, too.
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    2002 Chevy Tahoe LT Audio System Replacement Options

    Sorry for the long post, but lots of questions I have and background to share. I just got a 2002 Chevy Tahoe LT, everything is stock. The vehicle is in impeccable condition, only one owner before me. Setup: There are no "Bose" logos on anything, so not premium audio. Head Unit mostly works...
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