The MP3 radio on my 2009 Ranger has failed. Can turn on & off and get sound, and CD player plays, but none of other buttons work. It reset itself to 600AM, and remains there regardless of what is done. I talked to a local car electronics guy, and he wanted something like $450 to install a new radio and the satellite receiver. Sirrius. Anybody have any suggestions? I've heard everything from disconnect and reconnect the battery to bang the heck out of it. I really miss my satellite radio.