Radio is the standard for my Avalanche.
AM FM CD
2 Sites listed below:
Parts are as listed:
CK3100 Parrot (Hands free car kit)
GMCSS-2 (Surround Sound T harness for ONSTAR Applications)
Parrot 1 (Cell adapter for Harness to Parrot Harness)
1st site is the maker of the harness
2nd site is the comapny that sold me everything.
It took 4 weeks of internet searches and phone calls to find something that enables you to hook up car kits but leaves the ONSTAR totally working. I am extremely happy with how this works.
Good luck to all!
Happy Holidays http://www.electronicsoutfitter.com/store/GMCSS-2.html http://www.ncicellular.com/bluetooth.htm