13 to 7 Pin Adaptor Plug Including 13 Pin Parking Cover, ISO 11446 and ISO 1724, for 12 V Trailer Systems, Plug-In Connection for Car to Bicycle Stand, Bicycle Carrier, Trailer : Amazon.de: Automotive
13-to-7 Pin Adaptor - Burquip | Trailer Components & Parts
Thule Power Plug Adapter 9907 13 (car) to 7pin (carrier)
Narva Adaptor 13 Pin Euro Round to 7 Pin Large Round - The Trailer Shop
7 To 13 Pin Adapter Trailer Socket Connector 12v Caravan Truck Towbar Towing Electrical Converter N Type Plastic - Cables, Adapters & Sockets - AliExpress
Towing Adaptor - 13 Pin Towbar to 7-Pin Caravan - Towsure UK