Many thanks for that. So the quest is to find the wires in the harness that power the high beam. It is not obvious as the rear of the assembly where the LED is has no wiring attached to it. The wiring all comes out of the fuse box and heads in every direction but the back of the LED!! One of them has to be correct. If I have any luck I will post here as surely someone must've fitted a bar or some lights. My lights came with the H4 plugs and cable that can be spliced into the car's wiring.
Thanks again.
