I followed the schematic at the top of this thread exactly. My electrical technician actually has contected Cole about the discontined switch and yes it is different than the 75600-04. They claim it wil work but trust me it dont.
The switch you need is the 75601-04 to make it work correctly. You will also need 3 relays. The cheapest place I was able to find them was at
www.allelectronics.com. I used the part number RLY-421.