Head Unit

An automotive head unit is a component of an automotive infotainment, which provides a unified hardware interface (mainly, the screen and buttons) for the entire system.

The head unit is the centerpiece of the car’s sound and information system. Head units give the user control over the vehicle’s information and entertainment media: AM/FM radio, satellite radio, DVDs/CDs, USB MP3, Dashcams, GPS navi, Bluetooth, WiFi etc. Many audio-only head units afford the user precise control over detailed audio functions such as volume, band, frequency, speaker balance, speaker fade, bass, treble, EQ and so on.