Hi. Love my 2013 max hybrid but having radio/audio/battery problems at 43,000 miles CD would not eject or turn off, continued to play even when car turned off, door opened and shut, car restarted, turned off and door opened and shut. Dealer tries resyncing, did not work. Couldn't get in to service dept for a few days, in the mean time car ran completely out of battery had to be towed to dealer. At service dept today, apparently problem resolved when car battery re-charged. Very very very odd. Will watch to see what happens. I drove home with audio off. Restarted car so I could sync my smartphone. When I turned car on, the radio came on, even though I had not turned it on. Not a good sign. I'll keep you posted.
