View Full Version : Please Help rear light wiring colours

24-09-2010, 11:18 AM
Am about to fit a tow bar to my 2009 1.9 TDI Jetta. I have a bypass box and propose using the boot 12v outlet to provide the power for the trailer lighting bar through the bypass box. Does anyone know the car colour coding for the rear lights so I can tap into them with red scotchblocks?they seem to have four wires each side with Brown the only common colour.