I mean that just because you have an alarm doesn't mean your car can't get stolen/broken into. all an alarm is going to do is deter thiefs and slow them down. If they want into your car, they are going to get in, its ust a matter of how hard the alarm can make it. By having multiple sirens hidden in the car, under the dash, the hood, trunk, etc, backup batteries, and making sure that the brain isnt accessible very easily. Ensuring it's deep up in the dash, maybe hidden in a lock box, etc. I probably would rather find someone at a trustable shop or on these forums who knows what they are doing and will install it for you and ask you questions/ go through it with you. Circuit City is just going to throw it in there as fast as possible, not taking time to ensure everything is to your benefit. Think about it this way, what is the point in spending $500 on an alarm and an install if it isn't going to stop any crooks? I'd rather pay $1000 and know for a fact that a thief would really have to want my car in order to do anything to it. I have over 15 sirens and backup batteries in my car, the brain would take at crook at least 60 mins to get to, and that's if they have tools and know exactly where the brain is and how to take apart the car in order to get to it. I also have pain generators inside of my car, so not only would they have to spend an hour to disable the alarm, they would also have to sit in a car with disorienting noise at high db's.... I don't know about you but I would say if you are going to half *** an alarm, you may as well not even get one!