heres a picture of the end of the plug
i have done the numbers so they're a bit clearer

connector number 6 is the one you want not sure what colour it is but the rear drivers side (the one i got from scrap yard) is purple but this may not be the case for all of them but the cables are numbered on the cable:
front drivers door- 6261
front passengers door- 6262
rear drivers door- 6263
rear passenger door- 6263
you may be able to just jump off one of these cables (cut and rejoin the cable and add another cable like a y ) to go to the lock and it may power the rest but not sure as i only have the front electric windows.
you will need to find the switch wire that comes live when you lock the door with a multi meter (cant remember what number this cable is but ill have a look when i get a chance)
sorry if its a bit vague. ill take my door card off and take some more pics