thanks for the tip! I have a 2014 Passat that does not have Car Play, so this will work with the (new) California driving laws that prohibit touching a phone while driving (unless it's an emergency, of course).
But you have compositon media in your car, so you should be able to use CarPlay. If not that, then you could also connect your phone to system via bluetooth and use voice command button on steering wheel to access siri.
Hello, is "hey Siri" and Siri activation from steering wheel still working? Have you tried a newer iPhone or iOS? I have the same car with Discover Pro and Siri is not working with my iPhone XR.