You know, I'd checked the FAQ and done some Googling but thought the gaiters looked to be in good order but following your replies just had a go at looking inside (wow - big plug!) and yup, a melange of broken and bare wires and cracked insulation. Thanks! So.....what's the best method of repair? There's limited space so presumably it's one door off at a time and manually replace each broken wire (splice and heat shrink them one by one)? Got a 1100km drive tomorrow morning so not starting any big jobs right now.