I had a simmilar problem with my 2K Mustang.Alarm went off, for no reason. I could not get it to stop short of diconnecting the battery..ACK. . Im my case it tured out someone had washed one set of the keys :roll: and there was a now a short in the keyless remote/panic key fob. Once I figured this out and wraped the offending unit in aluminum foil as an RF shield everything was fine...........WMichaels, have you gotten your keys wet recently ?........just a thought.