I will be fitting a towbar on my new Antara & have also upgraded my caravan from a 2001 model to a 2011 model. The tow bar I need is the new single socket type Problem is I will need to tow the old caravan which has the 2 plug N & S sockets to to the dealers as I've part exchanged. Then pick up the new caravan. I can take the old van now & Pick up the new van in a few weeks. Is there any type of adapters or something I can use to operate the light clusters on the old caravan.