I bought my first car this year, and am having a lot of trouble with vandalism. It's not a new car, but the previous owner kept it in good shape. Someone is repeatedly taking a screwdriver to the panels, windows, even the license plate. I'm not sure if this is occurring at home in the driveway or in a city lot. I'm wondering about a basic alarm system and could use some suggestions. Should I be looking at a capacitance alarm? The local suppliers (custom shops/box stores) gave quite a range of quotes.