Random perspectives from Cleveland

Here is Ryan's dream come true:

The Sony XA-300 provides two auxiliary audio inputs for any UniLink CD changer-controlling Sony receiver. There is also a USB port (v1.1) for direct connection to a laptop or portable MP3 player. Features a headphone output with level control for input 1, and a UniLink pass-through port so you don't lose connectivity of your CD changer. Compatible with all UniLink Sony receivers and all UniLink 6- and 10-disc CD changers (CD changer is not required for auxiliary input). Not compatible with the Sony DVX-100 DVD changer.

You need to use that in addition to a regular head unit. When you select a source on the head unit, it will see the XA-300 with inputs. It's hella ugly though to be used in a regular DIN environment.