Need an ignition interlock device near Fort Smith? Intoxalock is available at TJ's Car Audio, a certified Intoxalock ignition interlock installer. We can install your breathalyzer in cars, trucks, vans and other vehicles.TJ's Car Audio is one of our local Intoxalock certified locations with convenient hours, prices and services near you. As a certified Intoxalock provider, you can count on reliable, quality service. TJ's Car Audio is located in the second largest city in Arkansas. TJ's Car Audio serves the Fort Smith area with friendly and knowledgeable staff. They began installing Intoxalock ignition interlock devices in 2015. TJ's Car Audio is dedicated to providing the best customer service possible. They offer quick and easy Intoxalock ignition interlock installation and deinstallation for your convenience.