Have you installed our MIB2 PQ Retrofit Kit and are having one of the following audio issues? Audio clicking Balance/Fader not showing Rear speakers not working More than likely, your vehicle came from the factory with a Dynaudio or Fender Amplified Sound System, and your MIB2 is not yet programmed for this. Use this installation guide to enable Dynaudio/Fender Audio on your MIB2 Retrofit unit. Note: An upgraded CAN Gateway is needed to communicate with your MIB2 via Vagcom with your pre-2015 vehicle and complete this fix. MIB2 PQ Dynaudio/Fender Instructions