Worst mod for me was the plastic tray that replaces the mesh bags on the lower front door,it hit my shin and made me feel squished . Gave it to a buddy good riddance.
What about a switch on the fuel pump power wire ,that's how it used to be done no fuel no run.
So I just looked up the ravleco anti theft device
We used to wire the cig lighter so if you removed it power to fuel pump was cut,simple and cheap.