In the name of God, the Most Gracious, the Most Merciful. Adding many features to Audi, Volkswagen, BMW, Mercedes cars, including: Disabling seatbelt sound Modifying turn signals or flashers (1-7) beeps Disabling start and stop system Modifying the dashboard appearance Opening and closing doors while the car is running. Note: Features vary by car manufacturer. Each car has different features that can be added, depending on the trim level.