Thanks for the video. In my 2003 e46 coupe, these wires were fine, but two other sets of wires were broken/severed. The red wire to the rear-most motor plug was completely broken and there was a small black, two conductor wire going from the loom connection to the seat back that was completely severed. After I reconnected all these wires the battery was totally dead over night. So essentially what I'm saying is the wiring under these seats could be a total horror show. Good luck! I was able to de-pin the connector to the motor with two cell phone sim card ejection tools that I cut to slide in on either side of the connector that I was looking to remove. It was a complete pain in the... pins.
