Bolted up my towbar at the weekend and started to look at fitting the smart relay last night and hit a snag. The wires from the smart relay do not seem long enough to reach either side of the car. I can tap into one side of the rear lights but wont be able to reach the other side. Am I missing something here or how have other folks managed to get round this? Its seems very easy, just the wires are not quite long enough. Oh and does anyone have a breakdown on the wiring to the back lights so I can double check.