My very first car, a Toyota Celica, had a nice aftermarket stereo. The dash was small, so the radio was a underdash modle from Pioneer and I had an equalizer under it(yes this was a long time ago). I had to work in town and park in their large paking lots that were frequented regularly by car theifs. They broke in and attempted to steel the radio, they never got anything but they did mangae to break it all. I noticed how they simply atempted to pull on the radio, and break it free from the mounts, killing the equipment while doing so. So I replaced everything and this time add a row of razor blades to the top/back part of the radio and equalizer, think if they try and do the same thing, at least they will suffer. A few weeks later, I get off work and notice my door is open as I walk up. It must have been the same guy, cause the MO was exatly the same as before, only this time my radio is still there but slightly crooked. The floor mats and seat covers were covered in blood, and i even found a large piece of his finger, that he will miss forever. I don't fell sorry for the guy at all, though I would think twice before doing it today.