My rear driver's side window stopped working and, over Christmas vacation. I found that the culprit was that the power window wires broke from repeated flexing in the door jam. One side was still exposed (I put tape on the exposed wire just in case) while the other side had disappeared into the door.
I had to take the door panel off and dig in the door to find the broken ends of the wires and was surprised to see how good the condition of my panel was!
But, after some digging, I found them. I created a large loop of wire for strain relief inside the door and rerouted the wires to eliminate tension and binding. It turned out that I could just solder the ends back together, after I rerouted everything! I then electrical taped the wires together in a rigid mass. This would allow the door's electrical opening to move around the wires when the door is opened and closed without actually moving the the wires at the door jam. Instead the service loop inside the door would take up the slack.
Hopefully, this setup will keep the impingment from happening again. Finally, I resealed the plastic liner on the inside of the door to keep the dust out and put everything back together.
I know it's a little, easy job but it was fun to try to do everything right in there.