I have a new Kwik Wire wire harness in the pig and the fuse panel is inside the cabin under the dash to the left of the steering wheel. The odd thing is the labeled grey wire that goes to the relay and the fan…new…was working. I traced it from the electric fan back to the fuse panel with a multi meter and that wire was the problem. Tried to find out where and why that wire may have gotten pinched clipped whatever but after spending too much time I went with the coil route. Someday maybe I will dig in again and do it “right” but the next thing for me to do is the tailgate window. Want it working for the pig party.You should be able to find switched power at the fuse block, eh? Heater fuse...