Our RV was broken into a couple of times and we called Audio Express to get a security system installed. We knew nothing about such things and had a lot of questions as to how systems work. Ryan has tons of patience and explained how the system would be installed and answered many questions. They went out of their way to customize the wiring for our unit. They were efficient, helpful and even called us with a follow up call. Within the week ...we knew the system worked as it was set off by someone wanting to get in. Our Viper sure provides peace of mind and we thank Audio Express for that.