Fake kill switch to alarm siren?

I would like to install a kill switch. I would also like to install a fake kill switch thats easier to find thats goes off a certain amount of time even if they turn the switch off. Anyone with any ideas? I was thinking a glow plug relay that would set off a siren but when they turn the switch, it would cut off. I would like it to go off a set amount of time before it cuts off even if the switch is turned off. Ideas people? :banghead:

Disable the electric fuel pump.

I will do that but i also want a fake kill switch that triggers a siren a set amount of time.

I was thinking of hooking up a 12V capacitor to the fake kill switch so even if someone cut off the switch, it would last a couple more seconds. Does anyone think this would work?

Maybe you can trigger the SRS Bag too!