Advantages of the Audi Advanced Key System Audi offers a range of convenience features to make driving even more enjoyable. One of these features is the advanced key system. It works by using proximity sensors that are located in trunk lids and door handles, paired with key radio pulse generators. https://carlocksmith79467.educationalimpactblog.com/52503024/a-peek-at-the-secrets-of-audi-a3-replacement-key