Car audio refers to the sound system installed in vehicles, designed to enhance the listening experience while driving. It typically includes components such as speakers, amplifiers, and head units, which work together to produce high-quality sound. Many modern car audio systems also support Bluetooth and USB connections, allowing users to play music from their smartphones or other devices. Upgrading a car audio system can significantly improve sound quality and overall enjoyment. Options range from replacing factory-installed components with aftermarket products to installing advanced systems with features like subwoofers for deeper bass. Enthusiasts often customize their setups to suit personal preferences and enhance their driving experience.