That sucks big time, my dad has his old 5.0L broken into 3 times. He caught the kids one night, I remember it so clearly, my room looks over my driveway, and I remember hearing a noise so I looked out my window and see these kids in the driveway and like 2 am, so I went to go tell my dad, he's like good, he grabbed the baseball bat, and walked outside, my dad isn't a big guy, but he's crazy enough to do anything. he walked up to them grabbed one of them, and the baseball bat in his hand, and asked what they were doing. They're just like ohh... we're looking at the car. He was going to take them for a little "ride" down a country road, but my mom just made him call the cops. Apparently these kids had already broken into a few cars that night, and had a bad background. Either way, my dad had alittle takl with them and none of our cars have ever been broken into since then.
I suggest putting a kill switch, route it up to your fuel pump and put the switch under your seat or somewhere no one knows.
-Sam.