Voice Recognition Command from factory SWC. The CRUX SWRGM-48 is a premium interface for select General Motors Class II Vehicles. It facilitates the integration of an after-market radio to fully retain factory features in GM Class II Data bus vehicles for Bose Amplified and Non-Amplified Systems.
I looked all over trying to find a pig tail for my 2006 GMC Savana. I finally found this and it works great. The color codes were a little off but they all lined up with a wire and it works great. Highly recommend this to replace you factory radio with an after market one. This makes all the chimes that your vehicle needs.