A car alarm is an electronic device installed in a vehicle in an attempt to discourage theft of the vehicle itself, its contents, or both. Car alarms work by emitting high-volume sound (usually a siren) when the conditions necessary for triggering are met, as well as by flashing some of the vehicle's lights, and (optionally) notifying the car's owner via a paging system and interrupting various electrical circuits necessary for the car to start.
Welcome to Speed Daddyâ€™s eBay Store. We specialize in aftermarket automotive car parts and is the #1 industry distributor for affordable and quality products. Our inventory is one of the largest and been consistently selling on eBay for a decade.