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  1. Curious about a 2009 Nav in an 2002 GMC Envoy.

    Audio and Electronics
    So, I have what might come off as a purely stupid question, but I'm curious if it would work . . . I have a 2002 GMC Envoy SLT 4x4. It enjoys giving me a headache every 5 seconds, however I really want to change some things, mainly the radio to a touchscreen with nav. Now, I know it's been...
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