The Audi Convenience Key and Audi Advanced Key If you want to avoid digging through your pockets for the car keys that are physically present The Audi convenience key is your solution. It's an authorization and access system available via the WB3 Comfort and Sound package on specific Audi models. https://car-locksmiths13564.bloggazza.com/29177068/audi-a1-key-replacement-tips-from-the-top-in-the-industry