Hi. I'm having problems with my mk3 golf central locking. The loom that comes out of the passenger footwell has four wires. a green and a grey wire which I have established are door unlock and lock. There is another green wire and a brown wire in the loom which I am unsure what they are, Also, on a matter of my drivers door switch, it reads positive when closed and rightclick alarm needs it to be positive when open.
Grateful for any help