Advantages of the Audi Advanced Key System Audi offers a variety of features that make driving even more enjoyable. One of these options is the aforementioned key system. It operates through proximity sensors that are located in trunk lids and door handles, which are paired with key radio pulse generators. https://auto-locksmith93780.idblogz.com/30627001/why-you-ll-need-to-read-more-about-audi-a3-replacement-key