I have a carport, not a garage, and the carport sits right outside my bedroom window. I still lock it every night, and even during the day when I'm inside, but I don't set the alarm because I'm tired of it constantly going off. I live within a quarter mile of a rock quarry, so blasting for rocks, dump trucks driving up the street, etc, tend to set the alarm off far too often. Car has been broken into before, and one time is enough. I'm hoping the little blue light in the dash that blinks when the alarm is set, and the Viper stickers on the inside of the windows will be enough of a deterrent so I can avoid another break-in.