Need an ignition interlock device near Brentwood? Intoxalock is available at CARTRONICS BRENTWOOD, a certified Intoxalock ignition interlock installer. We can install your breathalyzer in cars, trucks, vans and other vehicles.Every radio, car stereo and sound system we sell is driven by two factors: value and quality! At Cartronics, we offer installation and warranties with all products. We are authorized dealers for the very best merchandise in the industry. In addition, we have been installing ignition interlock devices for Intoxalock since 2013.