Hi folks. I live in northern MN, and it has been a very cold couple of weeks. Nighttime temps of -20 F. Unfortunately, my 2006 Mustang GT sits outside. Today we had a heat wave (36 F!!), so I went outside to start the car. I noticed the outside bulb in the taillight on the drivers side was on, and the lens was warm, so it had been on for a while. Car started fine, I pushed the brake pedal, turned on the blinkers and taillights, and everything else in the taillights worked as it should, but this one bulb just stayed on no matter what. I disconnected the battery, then hooked it back up, and the light was off. I pushed the lock button on the key fob, and the light came back on and stayed on until I disconnected the battery again. Any thoughts or ideas as to what may be going on? Thanks.