This is the weirdest thing - over the last couple months the 8200 I have had installed in my wife's car for the last few years has randomly decided to not start up sometimes. It works with the backup camera as she gets out of the driveway, but then it won't do anything else - and if she ends up going into reverse again at some point the backup camera doesn't initiate a 2nd time. 

Does anybody have any idea what this would be? It didn't start like overnight - it started happening like once a week, now it won't turn on at all. Is it totally done?