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I have an 08 Silverado with a Z3 installed since new. Two different modules for steering control integration have been replaced. They work for a couple trips and then done. Installer just put a new and final module in today after being without my controls for about 2 years and low and behold, same drag thing. Has anyone had issues with their chevy truck like this. My installer says there must be a power control problem with the truck itself. Sounds crazy to me. I just want my buttons to work! HELP!!!!

Kenwood makes an awesome BU unit. I had it put in a week ago when my Z3 was installed. Sorry, don't have the model # handy but if you need it let me know. I compared it to several on display @ car toys.