Installing a KILL Switch and Alarm...?

[Waterloo]

I want to install a kill switch, not really interested in messing with the ECM power wire to the batteries, but if you guys think that would be cool, I can do that. Any idea on the ignition? My car theft days never materialized, LOL! So, I am a bit clueless...

My plan, is to use one of my remote wifi switches, so no external button or toggle, so I can bury this thing anywhere in the truck, ANYWHERE.

And how about an alarm? Not necessarily a car one, but one that would sound a very loud alarm if someone breached a door or window? Anyone mess with one of those? Wondering about something like Simply Safe? I have electricity in the truck, plenty to run something like that, but clueless if it would work?

Point me in the right direction. How would you guys do it?