Alamos 1st Help

Would you happen to have a wiring diagram of the fuel system? Yea it’s insured but I won’t see a dime if it gets stolen..

Good morning. I am attempting to install a kill switch in my 2016 GMC SIERRA 4.3. I cannot find the fuel pump or crank wires I need to cut and wire to my switch. Does any one have access to fuel pump or crank wire diagrams with location and wire color they could please share? I tried back probing all over the steering column and can’t find a “crank” wire. Or does anyone have any other easier wire to cut and wire to switch to keep the truck from starting? I have a momentary switch and a toggle switch ready depending on which one I need. I live in Texas where these trucks go missing and get took to Mexico all the time. I heard thieves just pop the hood and install a pcm programmed not to look for PK3 before starting. So shutting of fuel independently or crank should fix or prevent this hack? And on star is a joke to unplug.. js