Is there a way to add an electric fan to a B&M tranny cooler without upgrading to a cooler that already has a fan? What about just getting a Radioshack 12V fan and wiring it to an On/Off switch inside the truck so I can switch the fan on or off as needed? I attached some photos of the setup so anyone can give their advice or opinion. I had the tranny cooler professionally installed. The transmission cooler pipe is cut by the oil filter and one of the hoses is attached from the cooler to the cut pipe and the other is attached from the cooler to the top of the radiator.