Need an ignition interlock device near Livonia? Intoxalock is available at JT Sound, a certified Intoxalock ignition interlock installer. We can install your breathalyzer in cars, trucks, vans and other vehicles.JT Sound is the remote start experts in Livingston County. In fact, they specialize in everything mobile electrics. JT Sound has been a NY approved ignition interlock installer for Intoxalock since 2011.