Active Soundsystem for Audi A4 B9 with APP control

Active Soundsystem für Audi A4 B9 mit APP-Steuerung Active Soundsystem für Audi A4 B9 mit APP-Steuerung

After retrofitting, the engine sound of your Audi A4 B9 can be easily adjusted via app control or original installed switches.

The complete set is compatible with the following Audi A4 B9 models:
  • All TDI vehicles
  • All petrol engines are also possible

Do you have any questions about the Active Sound retrofit? Then please write to us.