question about taurus fan and DC controller

i have a taurus fan on my car, and i just wired up a generic relay from autozone with a painless thermistor switch that turns it on at 185 deg. I also put in a bypass switch. I just leave it on low speed (that keeps it at 160), but if i want high speed, i just switch the wires on the relay

Looking at the controller it looks like the Hayden one I installed on my car. It looks like it has 2 relays built into it. I don't think you will need anything else except wire. Mine didn't require anything else and it works great.

I'm not sure if I have the same model as yours, but no relays required on mine. This (along with the Griffin alum. radiator) is one of the best mods I ever made on my car. The fan controller ramps up slowly, so you don't get any nasty voltage/amperage spikes. I ordered the monitor light they sell as well. It is SO cool ! The LED changes color (from green to yellow to red) according to how hard the fan is working, so you know what's going on with the fan at all times. Of course the fan kicks on with the AC and there is even a jumper for underdrive pulleys, but I don't use that even though I have UP's.

Also if you don't already have it, I would definately do the 3G Alt. upgrade, and the extra engine ground as well.

I installed mine 5 years ago and didn't need anything other than maybe some wire.