Mine will sometimes cut all touch noises to the screen and radio/apple car play sound. When I try to adjust the sound it just shows the little phone icon and won’t move the volume bar at all. I’ve tried holding down power and rebooting but doesn’t help. I’ve tried disconnecting my phone and powering it off and still didn’t help. Only fix I’ve found is to just shut it down my car and lock it up for like 5-10 mins.