My original wiring was a mess. I ended up using a wire under the dash in the hvac set that has power only when ac is on to run to the compressor so the the clutch engaged when AC was turned on. The fan is wired to come on automatically when AC is on too. Aside from the ecu not controlling the idle rpm properly when the ac is on my truck runs hot when the ac is on and in anything other than highway driving. Even then it freezes up after a couple hours of use. I know all these aren’t interrelated but I’d love to get everything squared away and working properly.
