https://www.campingworld.com/husky-towing-6-way-round-to-4-way-flat-adapter-145391.html
This Husky Towing Trailer Wiring Connector Adapter connects 6 pole round and 4 wire flat end.
husky towingwayroundflatadapter
https://www.thedrive.com/news/rv-driver-annihilates-fiat-500-by-flat-towing-it-in-first-gear-on-the-highway
Towing a tiny Fiat 500 behind an RV is okay, unless you forget to take it out of gear and obliterate its transmission.
flat towingrvdriverfiat
https://elitetruck.com/collections/curt-flat-towing
America's Leading Online Retailer of Commercial Vehicle Accessories Including Truck Tool Boxes, Van Packages, Transfer and Auxiliary Tanks, Bed Covers,...
flat towingcurtelitetruck