2006 CL. recently, the map/destination/menu buttons as well as the backup camera have stopped functioning... meaning, when i push on them, no beep/no screen response, just black. when i reverse, the screen also is black. the option/audio/climate buttons all work... stereo works. i have a grom vl2 that i usually disconnect/reconnect when the stereo system acts wonky, with historically good success, but not this time.

thoughts?