if i wanted to hook up a manual aux fan switch where would i make the cut in for it? at the fan switch near the starter? and would the fan still come on at stock setting temperature if i spliced in a manual switch? (in case i forget to turn it on)

 

I belive if you tap into the passenger side temp. sending unit and run your wire to the toggle and ground the otherside of the switch your stock relay will still work when it is supposed to and you will have a manual overide with the toggle switch