My baller fan controller! Lol
this is how I wired it up (stole this from moso on here a while back)
if your going to copy this don't get the fan switch from napa. Mine and mosos switch went bad within a year. I'm running a fan switch from orrielly made by import direct which is basically genuine Honda.
Also I did away with the emergency switch, and ran the power wire that goes through the relay to the fan switch from the 10a fuel pump wire and just grounded the other wire from the switch straight to ground. The way it is in the diagram would make the relay buzz sometimes.