Advantages of the Audi Advanced Key System Audi has a number of convenience features that make your time at the wheel more enjoyable. One of these is the advanced key system. It works via proximity sensors in trunk lids and door handles, which are paired with key radio pulse generators. https://car-locksmiths27592.get-blogging.com/30660004/five-things-you-ve-never-learned-about-audi-a3-replacement-key