A device that enables an iPod to work through an automobile's audio system. A car's auxiliary jack enables iPods and all other mobile devices to connect to the car stereo via their headset jack (analog out). However, the best type of adapter makes the iPod (or iPhone or iPad) part of the car's entertainment system by connecting directly to the device's 30-pin or Lightning port. The buttons on the dashboard and steering wheel are then used for control, and song data can be viewed on the car's built-in screen. See Apple dock, Lightning connector and MP3 car adapter.