would love some info re the ac relay setup please how its wired etc and what i would need to remove from the doner truck

 

There are 2 types of set ups for the AC relay fans, one has the pressure switch on the front by the condenser and the other does not. I got the one that did not have it, and it was 3 wires to wire up, the other is just 2.
Just get the entire harness for the Ac Fan with relays and swap over. Then the wires are just,Relay power, High speed and low speed. The low speed is connected to ac trigger so that is on when the ac is on, and the the other is to the high psi switch that is inside the evap. This way if there is high pressure the fan will kick on high and cool the temps.