I'm a new member here...so please go easy! I'm glad to see there is a great community here for Honda Owners!!!

I have a 90 Prelude Si 2.05 as my winter/rain beater. Its currently off the road so I can do some well needed repairs. One of which is the A/C. DOES ANYONE KNOW WHERE THE A/C COMPRESSOR CONTROL UNIT IS!!!!. I'm pulling my hair out here!!! The previous owner had "hard wired" the compressor on, so the A/C worked all the time. Obviously this isn't acceptable, especially since the condenser fan, high idle, and ECU have no idea the A/c is on. I have checked all the relays/switches etc, and basically narrowed it down to the control unit....but i have no idea where it is. Can anyone help!