| use a thermo control amp from a Nissan Xterra: [ http://www.courtesyparts.com/thermo-control-amplifier-p-320305.html ] Cut the sky blue wire at pin 46 of the ECU. This is the AC input wire from the AC system that tells the ECU to turn on the AC system clutch.
Cut off the connector of the TCA, and wire the black wire to the sky blue wire from the AC system. The white wire goes to the sky blue wire towards the ECU. The red wire goes to any 12V switched power. I usually pull this from the ECU since I'm there anyways.
The thermo control amp itself is inserted into the back side of the evaporator into the fins.
Works great from what I have seen so far
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