i think i have the same problem my stereo stopped working while i was driving so i stopped and switched the key half way and the stereo worked.Then i switched the engine on but the stereo did not work, after i switched the engine on and held the key to the right keeping it there. engine and stereo on let go of the key stereo goes off and engine stays on.I was wondering if you have solved the problem.Is it the ignition barrel?Ive already checked the wires and connection they all seem fine.Totally comfused!