Music

* Play music from CDs, hard drive (MP3s, other compressed files) or external device (USB/PCI FM radio receiver, etc)
* Benefits over a head unit with music file (MP3/WMA) playback:
* Support for additional formats, such as loss-less OGG, as well as DRM-protected files (via iTunes or WMP)
* Faster indexing of songs (useful when there are hundreds or thousands of songs)
* Ability to directly download songs (via cellular data connection, or WiFi if close to an access point)
* Faster, easier playlist management
* Replace your headunit with a carpc and an amplifier