A car audio system is a collection of electronic components designed to play music and other audio in a vehicle. It typically includes a head unit, which is the control center, and various speakers that produce sound. Many systems also feature amplifiers to enhance audio quality and subwoofers for deep bass. Modern car audio systems often support Bluetooth and USB connections, allowing users to play music from smartphones or other devices. Some systems come with built-in GPS navigation and radio options, providing a complete entertainment package for drivers and passengers alike.