So the rad fan has worked in the past(I've heard it run). I ran the quad all day without a glitch. The winch worked earlier that day also. Late in the day the bike began to overheat(the fan never ran). This happened 3 times on the way back. At the truck, the winch wouldn't work either. I tested the winch direct to 12V & it works everytime. I'm wondering if there is a common ground wire for both & it's location?