A car audio system is a collection of electronic components designed to play music and other audio in vehicles. It typically includes a head unit, which is the control center, and various speakers that produce sound. Many systems also feature additional components like subwoofers for deep bass and amplifiers to enhance sound quality and volume. Modern car audio systems often support various media sources, including Bluetooth, USB drives, and smartphones. Some systems come with built-in navigation and hands-free calling features, making them more versatile. Upgrading a car audio system can significantly improve the listening experience while driving.