See the main page of Tour de Sol 2006 Photos at
http://www.AutoAuditorium.com/TdS_Reports_2006/photos.html
Unless otherwise noted,
these all photos were taken by
and Copyright 2006 to
John Helwig.
This looks like a car stereo nut's fantasy or a boomboxphobe's nightmare.
The circular disk in the center is one of those discharge displays
(is Seven-of-Nine here?)
and the rectangle is an LED light organ.
From the other side you have access to the controls.