Wait whaa? What's wrong with the audio deck?
Reports of sound muting out on one side (resolved by changing stations or something like that), sound going out completely (resolved by unplugging the car battery), freezing of the UI, Color going monochrome (black/white) on the display and bluetooth instability.
It could just be that some of these guys were unlucky, but the general consensus so far is that the UI is definitely glitchy and laggy. Also it doesn't help that the dealerships and service centers have hardly a clue about how to support this new tech.