There is only one wire that goes to the compressor. It should be a red wire which comes directly from the A/C relay. There should also be a ground (if I recall correctly) bolted to the compressor housing from the field coil.
The best I have is the wiring schematic for the entire system. I attached it below. I highlighted the compressor and wire to it. The field coil should have a power supply and ground. If I recall, the ground simply bolts onto the compressor. See pic 1 above.
Pic 5 below shows the field coil and pic 6 shows the wires. I circled the ground so you can see where it screws onto the compressor.
Take a look at this and let me know if it helps.
See pics below.
Images (Click to enlarge)
Friday, June 4th, 2021 AT 8:22 PM