Originally Posted by CrJenkins13

There's a way to break glass without triggering the shock sensor.

I believe there was a proximity sensor on the alarm, however, I don't know what the range was.

He also could have gotten a tilt sensor, which would alert him if the car was towed.

I think I recall his father getting mad at me for offering him "add ons", like backup battery, glass break sensor, etc, because he thought I was just trying to up the sale, but when I saw what kind of car it was, I was sincerely recommending the product. When I went through the sale, I mentioned it, but like most people, he denied. He then told me what was under the hood, so I asked him again, and pushed it hard, but he still just got the alarm with nothing else. I was somewhat disappointed :[.

The car was clean as fuckall. This was before he had done much to the exterior of the car, so he had his mind in the right place by getting the alarm shortly after the swap, but a couple other things would have helped.