The Nelson instructions are pretty crappy on which green wire to get but if you access to real info it's not that hard. I went all the way into the underhood fuse panel to repin the output to have two leads...one the where it used to go and one for the fan add.....pulled that wire to a length good enough to get it out from under the panel...put an end on it that made it where I could plug and unplug it at will...added the corresponding plug on the Nelson harness. I can jump the fans to high by pulling the connection apart and adding a jump wire...all wife proof.