On the Neo, everything on the drive is MP3s, I am assuming the ability to play the mp3s is on the firmware? So you can easily hook up a bigger drive than factory?

My only hesitation to this is it would be nice to be able to control the MP3 player from the steering wheel -- from the looks of it the Neo has its own interface.

Also, how hard was it to run cable from your neo to your HU? Is it in your trunk?