Need an ignition interlock device near Menomonee Falls? Intoxalock is available at Sounds Car Audio, a certified Intoxalock ignition interlock installer. We can install your breathalyzer in cars, trucks, vans and other vehicles.Sounds Car Audio has become a premier mobile electronics center in Wisconsin. Our employees have years of experience in home and mobile electronics sales and installation and are MECP Certified. Sounds Audio has been an authorized ignition interlock installer for Intoxalock since 2005.