Adding an alarm is a HUGE step in securing your vehicle and its contents, however most alarms can increase their protection by adding different accessories and options. We have many different add on items, like a digital tilt sensor for if someone attempts to jack up or tow your vehicle, radar motion sensors, where if you own a jeep or convertible, then you can protect your interior with the top down, or power actuators to add keyless entry to vehicles that did not come with power locks. There are also different remote start modules you may need to bypass a passive factory antitheft system, and our knowledgeable experts are familiar with which one you need for the car you drive. We stock the latest tracking and cell phone control systems, and extra transmitters to replace lost or broken remotes. We have additional impact sensors for larger vehicles or pickup tailgates, and extra sirens for extra sound or custom tones. No matter what type of car alarm or convenience system you may have, Audio Express/Quality Auto Sound stocks what you need to make your car safer, and our trained technicians will make sure you get the right items and a quality install at the lowest prices in town!