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Audi A4 (B9) 2016-2022 Owner's Manual: Multimedia connections

USB adapter

Fig. 151 Audi Genuine Accessories: USB adapter

You can connect your mobile devices through the Audi music interface to the MMI using the USB adapter and charge the battery at the same time.

You can purchase the USB adapter cable from an authorized Audi dealer or at specialty stores:

  1. USB adapter for devices with a micro USB connection
  2. USB adapter for Apple devices with a Lightning connection
  3. USB adapter for devices with USB type C connection


Handle the USB adapter carefully. Do not allow it to be pinched.


Apple devices with a dock connector can only be charged using a USB adapter designed for devices with a dock connector. Data cannot be transmitted.

Audi music interface

Connect your mobile devices to the Audi music interface in order to operate them through the MMI and charge the batteries.

The Audi music interface USB ports are located in the front center console and are labeled with the symbol. If multiple USB devices are connected to the USB ports (for example, a smartphone and a USB flash drive), all of these devices can be used as the playback source.

Connecting or charging mobile devices using a USB adapter

The battery will charge automatically.

Mobile devices connected to the Audi music interface can be started and operated using the MMI.

Disconnecting a mobile device from the Audi music interface


Driving requires your complete and undivided attention. As the driver, you have complete responsibility for safety in traffic. Never operate mobile devices while driving, because this increases the risk of an accident.



General information
There may be different media sources and connections available depending on the vehicle equipment. For example, you can play media files using a connected USB drive or connect your mobile devices to t ...

Playing media
Media sources The following sources can be selected depending on the vehicle equipment: Alexa USB device Connect external device: you can connect external devices via Bluetooth and use the Blueto ...

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