Exactly. You can also hide a toggle switch or other switch somewhere and use it for anti -theft.....if "they" can't turn on the fuel pump, "they" aren't driving your car very far.
So, if I wire the switched wire from the relay, to the inertia switch, to the kill switch, to oil pressure switch, to fused source, isn't that a lot to ask of the one wire? I bought a 30 amp switch, and the circuit breaker from battery is 30 amps.can I wire the switch into the battery wire?