So, we have an hour on the phone together and all you wanted to talk about was your bl00dy electrics!
Seriously though, I have done some digging and I have decided that you should ignore what that plug is plugged into on mine. Turns out that the plug in question is bridging a connection for the indicator relay and hazard switch but the male connector by default is left open and spare.
Looking at my list of wires for the Blue harness it states the following
blue/brn- spare plug behind fusebox (indicator relay pin 2)I can only assume this connection could be used for triggering the hazards without the relay via something like a 3rd party device, car alarm? I may test this theory at some point as whilst on the phone to you, disconnecting the green and black wire I had in it made no difference to the operation of my lights.
It's been over a year since I rewired mine from scratch and I was left with some loose connectors, I must have been advised to plug the black and green into the one you mention just because it fit! Seems like I still have a bit to look up on mine again now as they may be related to the lack of Warm Up Regulator (my only remaining electrical issue)
Here's the pic you asked for anyway. (pointless now after the above and your last text)
Keep me posted (well you are anyway) and I will keep digging.
