Need an ignition interlock device near Medford? Intoxalock is available at Medford Chrysler, a certified Intoxalock ignition interlock installer. We can install your breathalyzer in cars, trucks, vans and other vehicles.Merten's has been an authorized ignition interlock installer for Intoxalock since 2010. They give the customers financing and rebates as well as vehicle configuration if they choose. If a customer can't find what they want, Merten's will locate the car with a car finder form.