Yes, we have a PnP harness!
You need the dash-pipe kit, three LEDs, and a connection harness...
http://sjmap.us/Interior/Dash-ABL-Light-Pipe-Kit.html
http://sjmap.us/Interior/ABL-LED.html
http://sjmap.us/Interior/Dash-ABL-Co...n-Harness.html
I will need to get confirmation from you on the type of connector that you have. GM docs say one kind of connector, but, I have seen a different one in use.