I have a '75 280Z that has the ARA dealer installed AC. The car was dis-assembled when I got it and I am trying to put it back together. I have all the major components but am missing the AC control switch and the thermal switch. Any power switch should work but the therrmal switch for cycling the compressor may be another matter. Does anyone know where I can find this switch and how does it install in the evaporator box? Is this an item that can be found at any AC shop or is it specifically calibrated to the 280Z evaporator? Any help would be appreciated! Brad