I'll take you up on that. I have ball jacks with power paks gearboxes 4 total they had me wire heavy Gage wire from them to switches inside coach. 2 wires each 1 red other black I would like to put a relay close to batterys and run light wire from relay to switches. The only thing the the switches do is reverse the two wires to make jacks go up and down. Having all the heavy wire close together in compartment is a large rat nest.