Okay.
I disconnected the motor completely and left the other wires on. The fuse still blows, so its something in the wiring through the door.
So I investigated further and found this:
All I did was peel off the heatshrink and separate the two wires -- that wiring as shown was exactly how it was. Completely exposed.
Unfortunately after fixing that...fuse is still blowing 
Just wanted to post that picture so people know that this wiring will degrade pretty badly over time.
So... there must be a short in the wire deeper into the door. How much of a PIA is this going to be now? Anybody gone this far before?