hey everyone

going to start going to school in Detroit pretty soon and just watched the chrisfix kill switch video and im thinking about doing one to for security measures he wired the switch to the fuel pump relay and it looked pretty clean but since I did the fuel pump rewire and there is a wire for my fuel pump already running thru my center console could I just put a switch directly on that wire? this way I wouldn't need to buy and run anymore wire than I have.

let me know of anything I should be aware of like maybe the right amp switch or something I would still have the relay hooked up so the car would work like normal with the switch on just turn it off in public places I cant keep an eye on my car in.