Passenger door
 

Hi.. recently started having problems with only one door.
When is cold outside electrics in front passenger door dont work like central locking ambient light window and folding mirror. After about 20min of driving when car warms up door electrics start to flash and then eventually everything is back to normal. I thought it could be a water leak somewhere but it didnt rain for couple of days. When the car is parked in the garage over night electrics are ok in the morning,when is parked on street or finishing work at afternoon there is a problem. Vcds marked up door control module issue. Thinking about changing the door wiring from the pilar or door control module.
Have anyone seen this kind of issue?
A8 d3 3.7 v8 petrol 2003 pre-facelift
Thank youuuu