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  1. 2002 Envoy After Market Stereo help.

    Audio and Electronics
    ive been looking at getting a new after market dash installed into my 2002 Envoy. I started to look for stereos and find the best blah blah.. When i went to my local stereo store, they told me that because i have a "newer" GM car, that ill need to get a harness for my stereo if i wanted my door...