Guest Posted February 21, 2014 Report Share Posted February 21, 2014 can anybody with one of those sweet dealer/installer accounts send me a wiring diagram for a 2012 colorado? it has onstar and six speakers (or eight, idk. it doesn't have four speakers i can tell you that much) i need it because im wiring up a LOC for a friend and he's keeping the stock radio. cant find a diagram to save my life. thanks guys Link to comment Share on other sites More sharing options...
john253a Posted February 22, 2014 Report Share Posted February 22, 2014 Worst case Is wire the loc at the pillar That way you know your got the right one And use a 9v batt to get you (+) (-) round the right way Link to comment Share on other sites More sharing options...
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