HI All trying to fit a pf jones towbar electrics but having issues with fuse box side. How I read it you take out pin 2 then fit wiring loom 15 into pins 5 and 4 which I have checked on the t6 has ready got wires in these locations. Then you put wire 3 into a block and a would assume that was the wire I took out of pin 2,the the L wire from towbar socket put into pin 2 but all these pin locations already have allocated wires in them. pics of diagram below could anyone help having a nightmare with it many thanks.