my buddies swapping doors out on his 92 f150 and we got the door panels off, the speaker out, everything but what im guessing is the power door lock wiring? everythings power by the way. basically what were trying to do is take the doors off of his truck now and put on his spare doors but use the wiring thats on the truck now.

how do you get the door lock unplugged? its the piece in my hand in the picture below. its like it runs down to the bottom of the door and then somewhere else? how do you get this part unplugged? do we need to take off the lock piece or what?