How can I get the Volkswagen RCD 310 radio/CD player to work with Siri?
When iPhone is connected to the car using Bluetooth telephone connection and I press and hold its home button, Siri starts, but nothing happens in the car: It does not stop playing music, the alert sound does not play over the car's speakers, and I cannot hear Siri answer my request even though the conversation is displayed on the phone's screen.
Version indication: iPhone 5S with iOS 8.2
[EDIT] when using the phone as Bluetooth media player, when I press the home button to start Siri, I can hear the tone, but I cannot hear the answer to my requests.