1983 Rolls Royce Corniche HVAC stopped functioning

[alabbasi]

All, I'm hoping that some electrical experts can help. I was trying to trace down a noise from under the hood and in the investigation, I pulled the plug on the GM A6 compressor to disable the clutch. When this happened, I must have shorted something because the compressor no longer engages and neither does the blower motor.

I'm also getting a buzzer noise from the relays and when I turn the switch to defrost, the oil light comes on (even though the engine sounds good and has good oil pressure).

The manual indicates that there is a fuse in a casing but I can't find it. Does anyone know where this is typically kept? A/C was functioning well prior to pulling the plug.