Hi Trevor
thanks for the reply. Over the Christmas period i took the car to the one auto electrician open. He had it for half a day and simply said after testing what ever unit is in the door wasn't communicating with his testing device. he pulled back the rubbers between the two doors and said they were fine. He did also say that it may not be the door unit at fault. I checked the fuses at the side of the steering wheel. Id take it back to the technician but he wants the car for two days or so so was thinking I may be able to at least take a look for myself and run the car.
Thing is I just don't know enough about whats in the door and how and if the window and door relate to each other or like you say they just have a common wire?
Thanks
Mark