I have recently purchased my first Monte Carlo and love it, but the factory radio is now changing stations on its own. Think that it is a internal problem with the radio. I'm not shur what type of radio it is, it has 5 preset equlizer setting, xm fuse in the fuse panle in the right hand kick panle. The car does not have Onstar, but has the controls on the steering wheel. I'd like to keep everything working as is. Any and all help would be greatly appreciated