How do I troubleshoot the sound system in my Audi A4?

I recently purchased an Audi A4 and I'm having trouble with the sound system. My music sounds distorted and there's a strange popping noise. What could be the issue and how can I fix it?

Make sure all of your audio settings are properly configured, including EQ and balance. Also check for any software updates for the sound system. If that doesn't work, try adjusting the audio levels in the individual speakers.