Try this address,
    http://www.mp3.com
    Then look under hardware, then go to list all (down the bottom).  There are
two types of MP3 hardware 1)Commercial (bugger all info just send em money) and
2) Homebrew.

    It takes a bit of link following to find a site with good information, but
there is heaps of it, from software, to hardware, and a fair bit of information
on creating a PC power supply using a 12V car battery (my interest).

    Im currently developing a CAR MP3 player.  So Ive heaps of information and
links lying around so if you need more info let me know.

Andres Tarzia wrote:

> There is at least one manufacturer for commercial car MP3 players. They have
> a model with 4Gb of memory (I suppose that it is a hard disk). For those
> interested, the URL is:
> http://www.empeg.com/main.html
>
> I am in no way affiliated to this company and I am NOT recommending this
> unit. I am just interested in the technology and any spin-off.
>
> Regards,
> Andres Tarzia
> Technology Consultant, SMART S.A.
> e-mail: atarzia@smart.com.ar
>
> -----Original Message-----
> From: Stuart O'Reilly [mailto:pig@AR.COM.AU]
> Sent: Tuesday, September 14, 1999 21:15
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [OT] MP3 player for cars
>
> A couple of weeks ago some of us were talking about MP3 players for our
> cars etc using computers and some people had indicated that they were
> using pics connected to the serial or parallel port to control the
> software . My question is when you have alot of albums on your hard
> drive, how do you select between the albums (or playlists) using just
> the buttons?
> Regards
> Stuart