Thread: Has anyone used the PAC RP5 GM11 adapter harness?

Originally Posted by Slick2500

That won't work in 04+ cars.

Please explain.

Originally Posted by simbah

Please explain.

That adapter only provides functions to the steering wheel controls, you would still need to buy an adapter to use the stereo and retain your door chimes and Onstar functionality as well. So without the proper adapter you would not have a functioning radio. And why buy 2 separate adapters when you could just buy the one?