I just got off the phone with Jabin and he gave me all the answers I needed. We also learned that my current relay is fried. When my car got hot I would get something called "run on". This means my car would stay running when I turned off the ignition. The relay was soo hot it was fusing together causing the majority of my problems. He is sending me a new surge protector. The surge protector keeps the dc controller at 12v. The grey cable is a fusible link like gchandler said. It also sais right on the wire.
He said I can hook fusible link and the dc controller power source right to the junction block as long as the block is 12.3-12.4 volts. If it is 14volts I cant hook to it. I learned a lot in 15 minutes.
I need to buy something to test the volts to make sure. I currently have nothing to check that. He also said that the dc controller will automatically turn the fan on when the temperature in the radiator is 180* NOT THE ENGINE TEMPERATURE. This is where everyone gets confused. If I start my engine and my temperature gauge sais 200* then I need to add the jumpers to lower the temperature. Very very cool little system. Cant wait until my surge protector arrrives so I can hook this up and ditch the crappy relay.
Now that this thread is answered it can be placed into the cooling thread.