Power connects to fuse which connects to pin 30 of the relay. I've used two of the fused relays on a friends car. Worked well so far.
I've attached the drawing that I made that covers the area around the fuse and relay part of my homemade wiring system. It does not show Vintage Air A/C (which has two relays), ignition, lighting (including relays for headlights), horn, etc.
'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12 '52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.
