Cheers Neil. I have just found out the reverse wire was only for the reverse camera if fitted, so i don't need that now. The model van I have is an LDV Maxis Dropside. It's an 08 Reg, so I am not sure how hard it would be to find a diagram for it. I use the sat nav alot, and I would like it to be spot on for my jobs. Cheers 🙂