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Can someone help me with how to wire my alternator cut-off on my kill switch? The battery is simple enough - just brake the circuit on the way to the starter. But the engine will continue to run if i don't wire the alternator to kill at the same time. The switch instructions say to take the alternator feed and wire it to the switch on one pole - when the switch is turned off - the alternator feed goes to a resistor then to ground - killing the alt power.

question is which wire from the Alternator?

My car is a 67 duetto with a marelli alternator with a three wire plug (red/green/black)to a regulator, a ground, and a hot that feeds into the fuse box.

thanks all
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