Quote Originally Posted by Andrew_99GTP View Post
RAP and other chimes? I guess I don't know what you are talking about. I used the pigtail connector for the HU and a pigtail connector for GM wireing harnesses. This is what I used to plug into the car harness. Not saying you have to get it from there, I just used that as an example.

ZZ Performance

Then you should get one that plugs into the HU. I believe it comes with the HU.
you have a 99 GP. The 04+ use the class 2 data bus to send the remote signal and chimes to the radio. When you remove the stock radio most(if not all that I know of) aftermarket radios will not communicate with databus and therefor you need a special harness to maintain those features.