Thanks all for playing... we have a winner. The white and black are connected as before and the orange wires are are connected to the little orange wires in the dome switch. I did this with the female spade connectors on the RV's side orange wires and spliced in a second wire with a spade female connector. The Dome switch wires are very thin... smallest gage I have ever seen, so I connected the switch wires to the RV wires (both orange) with a 10 amp fuse (system is a 4 amp fused already) by sliding the female blade connectors on the blue of the fuse. then I wrapped them with electrical tape. I then plugged the spliced in wire to the Dome switch. So to robatthelake and Doug Rainer we thank you and as for parting gifts we leave you with actual knowledge... As for me, I will enjoy the operational fan.