Plug for the back heater, it operates on the chain relay, meaning if the butt circuit isn't complete, then the back wont work either:
Close up of plug:
Old broken one:
Yay your all apart, now put the new one in and put it back together!
Dads tool box
Hog ring tool
You will need this tool to put the seat cloth back on the cushion:
Take the ring and put it through the metal rod and clamp it to the metal rod in the cushon:
The rest is just reverse of taking it apart!
Yay your heated seat is working again