Thule 9906 7-13 pin adapter LordGun online bike store
Amazon.com: WESTFALIA Automotive Adaptor 7-pin to 13-pin to Connect 7pin Socket on The Vehicle to 13pin Socket on The Trailer or Bike Carrier : Automotive
Trailer 7 Pin Plug Male Round / Trailer 13 Pin Female Round Adapter - Australia Tow Bars & Performance store
Thule 9907 RMS Adapter 13 (car) to 7pin (carrier)
Tm3033 High Quality European 7 Way 12v 7 To 13pin N Type Pole Trailer Plug Way Mini Adapter - Buy 13 To 7 Way Adapter,Example 7 Pin Trailer Spring Wiring Connector,Truck Rv