with a loud plop, as if something more difficult had fallen to the ground my radio ” Navi”-CD-Player said goodbye. Everything was dark, no return camera was left. The next morning everyone was back again, but already after a short time the same game again: a loud plop (although no radio was on) and everything is dark. So far it has been repeated gneau again twice. Now it remains dark. I had suspected a backup. I have a radio-sicheur in the motorway to find on the passenger side. It seemed to me in measure, but for the sake of safety it changed nevertheless – without success. There are two more safety boxes: in the morraum on the driver side and in the inner up on the driver side below the steering wheel. I once set pictures, which for me there is no recognizable safety for the radio with it. Villeicht can help with yes someone. I would have enough if I had the Navi and the return camera again. Maybe I could have something bad. Thank you very much.