Kill switch wiring

[JoshS]

Quick and dirty method:
wire the alternator output to the battery side of the cutoff switch. no need to fiddle with field wires, ECUs, fuel pump relays, nothing.

when you flip the switch, there is ZERO power anywhere under the hood. Zip. Zilch. Nada.

Uhh ... except for that big wire going to the alternator ... Doesn't cut "all circuits."