Been in the works for like 8 years now, finally getting my battery into the trunk with a remote cutoff switch. Not doing this for NHRA or anything. I just want to be able to walk away with the alarm system armed and no power forward of the trunk. Where I am struggling is with the rather large 1/0 battery cable running through the cabin and how to cut power on it in the event of an emergency like being t-boned. I know some will answer to use a Ford style starter solenoid, but that makes it much more complex and adds 2 more wires running up the side of the car (4ga power for the car and a start wire). The idea that crossed my mind was to use an inertia switch to trip the battery cutoff so that the cable is dead if something bad were to happen. Now most (all?) inertia switches are setup to disconnect a circuit in the event of an accident, but there are 3 pins, 1 power, 1 NC, 1 NO. My thought is to re-pin the connector so that I have a normally open circuit from the car side of the battery cutoff switch to the "off" pin on the battery disconnect. This would (in theory) create the function that if an accident happened the inertia switch would close the circuit and pulse a 12v signal to the battery disconnect and shut off the power but wouldn't leave power on the "off" circuit to burn up the disconnect. I'm no electronic wizard though so no idea if this even makes sense. Think it would work? Maybe a small capacitor just to extend the "off" signal long enough to insure the disconnect get's turned off? Or maybe a timed relay and power to the inertia switch from the battery side of the cutoff?