valonic 13 pin to 7 pin towing adaptor - car to trailer, trailer adapter 13 to 7 - for caravan, towing electrics adapter, towing bar, black : Amazon.co.uk: Automotive
How to realign your 13 pin caravan towing electrics plug - YouTube
7 To 13 Pin Plug Electric Trailer Truck Adapter Towbar Towing Socket Converter | eBay