Ahh not checked what Ryder said as I was in process of finding true colours. See 08-08-2014 0931pm for wires at the light plugs that I found. There is not a discrepincy in my finding its just that all the incoming wires don't go through bulb and then out One earth wire. If I remember two bulbs are fed with one wire then separate earths. Ryders relay does a good job though.

 

Well, anyway, I wired it up as best I could. There were actually TWO white/tan wires going to the near side, so it was a 50/50 guess, then I drove 200 miles to pick up a folding camper, not knowing if it would work or not!
luckily, it was all fine!
just got the second, grey plug and relay to worry about fitting now