Ok, stopped at grocery yesterday, and after existing my 2002 f 250 ford truck and hitting the lock button on the key fob, it did not lock. Tried several more times and still wouldnt lock. I get home and shut the ignition off, the stereo is still playing but will normally shut off when door shuts. wrong...it's still playing! Today , I get a fresh battery for the key fob thingie and it still won't work! Any ideas? Oh, the "door ajar" light has been on for 2 years as well. Also the interior lights and the truck bed light seem to stay on for an abnormally long time after exiting truck and shutting the door..like..5 minutes. Any Ideas???