How does the sound system in the Audi A4 work?

I recently purchased an Audi A4 and have been trying to figure out how the sound system works. Can someone provide a detailed explanation on how to use the sound system and what features it has?

The Audi A4 has a premium Bang & Olufsen sound system that offers excellent audio quality. To use it, simply press the 'Audio' button on the dashboard and select your desired source (radio, CD, Bluetooth, etc.). You can also adjust the sound settings using the 'Tone' button.

In my experience, the best way to fully enjoy the sound system in the Audi A4 is to customize the equalizer settings to your liking. Play around with the bass, treble, and mid settings until it sounds perfect to you.

One cool feature of the Audi A4 sound system is that it has a noise-cancellation feature, which uses microphones to detect ambient noise and then emits sound waves to cancel it out. This makes for a much more immersive listening experience.