I was at a gun show in Phoenix and parked my Ford truck in the main parking lot. I didn't have an alarm but had an anti-unlocking system (that failed) and while in the gun show (1-2pm) theives broke into my truck and stole all of my tools, camera, GPS and radar detector. After that I got a Clifford 3.5 alarm, fixed the defective part on the lock and haven't had any problems since.

What brand of vehicles do you have?

Pap