I need a 2012 Colorado stereo wiring diagram

[Guest]

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

[john253a]

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