I have 2019 Crew Cab WT 4x4. Mine (IOR) does exactly same thing plus frozen screen and sudden ramping to the max volume. To enjoy music/listen to radio while driving, sometimes I have to park and wait for 15~20 minutes with engine off. This is my first Chevy... I had never had this kind issue for the past 30 years with other cars/SUVs. Again, dealer already changed my radio right after 1st oil change, but the same issue has occurred likely once a week. Dealer does not know what the cause is. I don't understand why Chevy cannot figure it out what is going on, though tons of people experience "EXACTLY THE SAME ISSUE". Is Chevy incompetent, unwilling, ignoring, or all?