k so i got a kenwood mp5032 head unit and the other day while i was drivin and listenin to a cd it jus stopped and the screen says E99... now all i can do is listen to the radio... it won't even go to the cd source at all and when i push eject it will push the cd out but not load one in.. i pushed the reset button on the head unit and it will go to the cd source for a second but then just say E99 again.... does anyone know wat i should do to fix it or has anyone had this happen to them before??