I am new here, and desperate for help. I have a 2012 Thor ACE 29.2 motorcoach, and jumper cables were accidentally crossed on the coach battery. Since then, the radio, including the cameras, will not work. I have checked every fuse I can find that is associated with the stereo and everything appears fine. I even replaced the Buss.breaker but nothing. I took the stereo to a repair place and they hooked it up and it worked fine for them. Does anyone have any suggestions as to what I can check? I haven't called Thor yet because from what I've read in other forums it will likely be a dead end. Thank you so much for your help.