Ben,

I had searched and searched for this for my Audi changer, but found that =
the=20
protocol was very proprietary.  Ended up making my own head-unit (still t=
o be=20
aesthetically completed) for my MP3 player.

So I doubt it would be on any website (though you never know).  Best bet =
might=20
be to decode the signals.

Cheers,
-Neil.



On Tuesday 10 June 2003 20:09, Ben Jackson scribbled:
> I'm looking for information (pinouts, protocols) used by head units
> to drive external CD changers.  I'd like to build something that would
> allow me to use the aux inputs on my stock car stereos.  Specifically
> I have a 2000 Toyota ECHO and a 1998 Honda Accord.
>
> There are companies that sell them for about $70-100 but if I could fin=
d
> specs I'd like to build my own...

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