Anyone wired a self latching or other type of anti-theft kill switch ?

And the thing is I usually forget to switch it off though when I park the car!
That's why i think a self latching relay is the way to go, you'd turn the key to the ACC position then push the button one like hemi71x described would be kool which would arm/latch the relay then turn the key to start, but everytime you turn the car off it unarms/unlatches and needs to be armed everytime the key is turn to the off position. Stopping the need to turn off the kill switch everytime which I'd would usually forget to do.

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