I'm going to be exhangine the RR door on my '83 300D. I have stripped the donor door for painting. However, how is the window motor wiring disconnected, besides un-soldering the terminals in the switch plug? When I remove the existing door, is there another connector beyond the door wiring? My service manual doesn't seem to cover this part of the car at all. I couldn't find an answer with the search function, but I'm sure one of you experts will know the answer.