Advantages of the Audi Advanced Key System Audi offers a variety of convenience features to make driving even more enjoyable. One of these features is the advanced key system. It works by using proximity sensors located in trunk lids and door handles, and is paired with key radio pulse generators. https://carlocksmiths96859.aioblogs.com/83527987/who-s-the-world-s-top-expert-on-audi-a3-replacement-key