A Pro will get around anything if they want it badly enough, punks will just bash and mash things and leave things very messy. If they want it they will get it, the only thing you can do is make it harder on them. An alarm is an inconvience and it is only as a good as the the person who installs it. If you have an alarm, look under your dash, can you see any thing that belongs to the alarm? A pro will know a car (if they are targeting your make and model) inside and out and will recongnize if there are additional wires up there. If you can see your alarm's brain your car is as good as gone if a real car thief comes around.
