Electric fan controller

I got mine off ebay and it does all the stuff you want.
I think it was about 35 bucks, and has it's own relay built in.
Kinda like this, http://www.ebay.com/itm/HAYDEN-3653...Parts_Accessories&hash=item5d39eb75b2&vxp=mtr

A person could run the controller inside the cab of the car if wanted.