[mb911]

The standerd black round relays installed in most porsches is the point of my question. Can anyone tell me what each pin does on those. I am looking on installing one in 1 of my cars as a fuel pump relay. Right now it is wired so that anytime the accessory is on the pump runs. I want to use the relay as a safety thing as I have carbs on this car and if were ever to get in a fender bender this would shut it off. I believe there are 5 pins and I just want to know what each function is. I know 1 is ground, 1 is power, 1 is accs,1 exciter, And 1 more but not sure which wire goe where. I know there are numbers stamped on but don't have one in front of me. Any ideas

Ben
77 911s 3.0
75 914-6 2.7 (for this car)