Right now I have my fan hooked up to a switch. Real pain in the a$$ to watch the temp gauge and drive at the same time. Does anyone know which wires on the stock harness i need to splice into for the fan to be controlled by the ecu. There are 4 wires. I know the white/blue and white/black are power wires, and black is most likely ground, but there is a random blue one too. I have a power and a ground wire for each of my fans. So, how should I go about wiring this. Thanks guys i know you won't let me down.