I was parking the vehicle and turned off the engine when the speakers gave out a loud noise. I turned the truck on to see if it would continue but there was no music and smoke began coming out around the radio. I moved the truck away from building and retrieved the fire extinguisher from the back seat. I noticed the "door ajar" warning was on even when the doors were closed. The smoke subsided and I did some quick research online. I was able to find a lot of information about the wire harness between the driver's side rear door and door frame being damaged, producing these symptoms. I disconnected the battery and removed the sheath from the wiring harness. Three wires were severed and several were frayed. (see attached photos) I contacted the local Ford dealership and they explained how it could be replaced at the wire connector in the door frame. Most trucks have a connector in the door frame, this truck does not so the Ford tech offered to solder the wires together. I am experienced in wiring and auto mechanics so I completed the repairs myself as he described.