The CoolStream Duo does not work with any Audi model built in 2008 or later. The CoolStream CarPro works with Audi and supports the display of music saved on your iPhone. It also supports the steering wheel controls so that you can manage the music saved on your phone. The Duo does not support either of these functions.
Important CARPRO ONLY message about some recent iOS 13.3 & 13.4 updates: Difficulties with pairing/connectivity are related to the recent iOS 13.3 & 13.4 from Apple and are not related to the software in your CarPro. Please contact us for troubleshooting if your CarPro is not responding as it did prior to the recent updates.