How to improve the sound quality in an Audi A4?

I recently purchased an Audi A4 and I noticed that the sound quality is not as good as I expected. What can I do to improve it?

One thing you can do is upgrade the speakers in your Audi A4. This can significantly improve the sound quality. Make sure to choose high-quality speakers that are compatible with your car's audio system.

Another option is to install a soundproofing material in your car. This will reduce outside noise and improve the overall sound quality. You can also add a subwoofer for a better bass experience.