Is anyone having issues with their radio screen scrolling through the icons/apps on its own? Also, I'm having issues with the GPS locking up, and won't let me cancel route guidance or change info. Was listening to a CD, and the screen kept scrolling through preset radio stations on its own, as well. I had it at the dealer, and they said that I needed a new radio...that was back in June...as of today, they (GM) has no replacement or radios in stock...are you f**kin' kidding me? Dealer and GMC customer service saying that they have no clue when they will have and update or resolution. How the hell can you run a company, and NOT have parts? So, I have a vehicle that I cannot rely on my GPS or radio to work when I want it to...total BS!