How can I improve the sound quality of my Toyota Supra's audio system?

I recently got a Toyota Supra and while I love the car, the sound quality of the audio system seems lacking. Can someone recommend any specific upgrades or modifications that I can make to improve the sound quality?

You can upgrade your car's speakers to higher quality ones. This can significantly improve the sound quality of your audio system.

Adding a subwoofer can also greatly enhance the bass and overall sound quality of your car's audio system.

Consider sound deadening materials to reduce road noise and improve the overall audio experience in your car.

Invest in a higher quality head unit for your audio system. This can greatly improve the overall sound quality and offer more customization options.

Consult with a professional car audio installer for personalized advice and recommendations specific to your Toyota Supra.