I have just made a towbar to fit my 940 SE estate.Does anyone know how to wire up the electrics to a towbar? I assume that all the necessary connections can be tacked into the rear lighting wiring.I also understand that a light has to be mounted somewhere on the dashboard to work inline with the indicators.The wiring I want to achieve is for towing a small trailer,so it will only require 1 plug,as opposed to 2 plugs for towing a caravan.

Any help would be appreciated.