This is a two door wiring loom for a Golf Jetta mk2 from 89' to 92' that have the later type fusebox known as CE2, this loom is a conversion from a VW Polo 6N and cover in Tesa Tape! there has been a few cut wires which have been solider, it will be more or less plug n play into your mk2 Golf, the benefit of this loom is that the window seem to go up and down quicker. 
 
Brown to earth.
Red To +12V
Grey/Blue to Lights on.
Black/Yellow to Key on +12V
 
The wiring to the window motors may differ due to the Golf mk2's motor having 2 or more different types aftermarket.   
THIS can easily be made to fit early CE1 fusebox cars.