I checked Ryder fleet products and they have a variety of coiled 7 way cords with male connectors for $36 to $76. I'm not sure if the 7 way tractor/trailer connectors and the 7 way RV connectors are the same, I never looked. If so, then all you would need is a female connector hard-wired on the coach. Total extended length 15 ft, $8 shipping, stock item. I saw that it has 6-12, and 1-10 ga wires. There were others available with heavier gauges, hence the higher price.