Metra GMRC-04 Wiring Interface
Crutchfield Customer Review (What's this?)
Very good product and easy to follwo instructions. I had a question on the wiring and called in but the tech could not help me. After a few trial and errors, I was able to figure it out.
Pros: Fast and accurate delivery, right parts for the job
Cons: did not match 100% of the factory controls on the steering wheel but most of the functions worked perfectly.