BMW Tow Bar Wires Pin 10 & 11If you have a BMW factory tow bar system and would like to modify the factory loom to add the additional charging facility for your fridge, this is the part you require. The BMW towbar socket has no PINS occupying PIN 10 & PIN 11. This loom will add the additional pins into the factory socket so it can be wired to allow for the additional charging facility whilst keeping the factory system. Price is for pair of wires (red & black)