Upgrading my Audi A5's sound system: What are the best options?

I want to upgrade the factory sound system in my Audi A5 to something more powerful and high-quality. What type of speakers and amplifier should I be looking for?

For an Audi A5, I highly recommend going with a set of component speakers for the front and coaxial speakers for the rear. Look for brands like JL Audio, Alpine, or Rockford Fosgate.

Make sure to invest in a good amplifier that can handle the power of your new speakers. Check out brands like Kenwood, Arc Audio, or Hertz for reliable options.

If you want a more integrated look, consider getting a custom subwoofer box built to fit in the trunk of your Audi A5. This will provide better bass and take up minimal space.