[sparkydog]

The good news about thieves is they aren't normally very smart or sophisticated (in spite of what we see in "Gone in 60 Seconds").

The bad news about anti-theft devices is thieves aren't very smart.

What I mean is that when your average crack smoking idiot thief tries to steal a car they "just do it" and try. They don't stop to think or notice fancy stuff like anti-theft stickers or lo-jack decals or flashing lights on your dash.

They will go ahead and break your window or pry open your door. You are going to be out that stuff no matter what. The most important thing is what happens next after they try the easy stuff. When the car stops being an easy rip off they usually give up. IMO the best thing you can do is make it real hard to hotwire and as hard as possible to tow it off. A battery cutout switch and a physical barrier (or pitbull) to prevent a tow truck from hooking up are going to solve 99% of your issues.