Ok first of all...before I start, does anyone know of a factory Ford rocker switch that is a SPDT and is NOT MOMENTARY? I'm looking for one to match the switches that control our windows/locks/pedals and all I can find is ones that are momentary (i.e. ones you hold to raise or lower a window).

Ok so my plan is to use the SPDT momentary rocker switch to control my electric fan. I'm not wanting to hold the switch in order to keep the high or low speed engaged, I'm just wanting the switch to turn the fan on to the desired speed.

Now with my newbie knowledge on how one would go about wiring this I looked to Ford to see if there was anything I could use from an existing system. The only thing I could come up with would be to wire in a one-touch window control module. It takes a momentary switch and keeps a circuit closed until an event happens:

1.) The module senses a load on the window motor when it's fully down and opens the circuit.
2.) The module senses a 12v signal when the switch is pressed again and opens the circuit.

I'm not going to use the load part of the module because the fan should see the same resistance the whole time it's running. I will be using the signal sensing part because that's how I plan on turning the fan either off and on or switching between high and low.

My question is will this setup work since the fan is activated through ground and the window module is activated by a 12v signal? Or is there a totally other, easier way to do this? Thanks in advance!