- $229 for a car-alarm installation ($479 value)
Since 1976, Cartronix has kept cars ahead of the curve by installing mobile electronics that can turn any car into a moving amphitheater. The technicians are trained and certified, and their inventory includes a wide array of sound, video, GPS, and alarm systems, as well as lighting kits and window tints. Sonic upgrades include digital stereos, speakers, and subwoofers that put factory systems to shame. Their practical electronics include navigation systems, alarms, and remote starters that make life easier by allowing motorists to start their cars from their kitchen or the backseats of other cars.