Hello bora289,
Welcome to Apple Support Communities. We're glad you're here!
We understand from your post that when you're enjoying music in your Volkswagen Discover Pro, either through Apple Music or Spotify, the songs are interrupted intermittently.
It will be our pleasure to help. To get started, we recommend the following:
• Complete the steps found here If you need help with CarPlay. You'll find a link at the bottom for additional help, as needed.
• Check out How to connect your iPhone, iPad, or iPod touch to your car which details the three different options for connecting your iPhone to your car. You may find that the other connections provide a fluid, uninterrupted experience.
Let us know what does the trick so you can enjoy your tunes while on the road.
All the best!