Just a quick question for you guys. I have a 08 HHR and am putting in a pioneer avh p4200dvd head unit that i ordered from Crutchfield. But they are sending me the gmos-lan-04 harness Because they dont not stock the gmos-lan-03. My question is will this work in my HHR? I do not have onstar or the premium system in my car. I wil be adding 2 amps soon. Thanks for any help.

 

if it was me i would just rewire the hole thing if your using amps don't need wiring kit

 

It may be different when it arrives, but the instructions for the harness HERE only mention RCA connections.

BUT, looking at a photo HERE, it looks like it still feeds directly to the speaker wires via the factory connections.