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Subject: Re: AJB & OEM CD changer replacement not possible
From: jobarjo (jobarjo78_at_yahoo.fr)
Date: 2004-03-31


I am very interested too
and have clearly reached some important steps. for the sony unilink
protocol.

I'm just looking for some work on that in the rockbox, but did not find
anything.

please read my other post
----- Original Message -----
From: <Matthias.Klumpp_at_gmx.de>
To: <rockbox_at_cool.haxx.se>
Sent: Friday, March 26, 2004 3:24 PM
Subject: AJB & OEM CD changer replacement not possible

> Hi all,
>
> the item explained in the following is not really affecting Archos or
> Rockbox, but somehow closely related, so I would like to hear about your
> experiences:
>
> I bought a Volkswagen, coming with an original Volkswagen car radio (made
by
> Blaupunkt) and original Volkswagen CD changer (made by Panasonic).
> As the radio doesn't have a AUX IN, there was no possibility to
additionally
> plug in the AJB.
> First step was then to plug off the CD changer and simply connecting the
> AJB's headphone signal the to the AUDIO-IN Pins of the CDC connector of
the
> radio.
>
> Result was NOTHING - no sound and radio displays "NO DISC".
> I figured out, that the radio needs the CDC's control signal to enable the
> audio inputs.
> Ok.
> That brought me to the idea to simulate the CDC control signal and finally
> the complete protocol.
> So currently I'm able to "open" the radio audio inputs by sending same
stuff
> like the CDC does.
> The radio thinks there is a CDC and I get full control of it.
> Other feature is, that key presses are now remote controlling the AJB.
> Automatic power on of the AJB (when ignition is on) is under construction.
>
> Well I'm thinking now about creating an open source project for that kind
of
> OEM CDC replacement to "open the door" for any audio source.
> Reason for that is, that I'm really beginning to hate that kind of
> proprietary stuff that comes in more and more into new car generations.
>
> Did anybody face similar problems related to OEM radio/CDC combinations
> (which ones) ?
> How did you solve it ?
> Would there be any "wide" interest about such a project ?
>
> Thanks for any reply,
>
> Matthias
>
> --
> ----------------------------------------------------------------------
> Sent by: Matthias Klumpp
> E-Mail : Matthias.Klumpp_at_gmx.de
> ----------------------------------------------------------------------
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> ----------------------------------------------------------------------
>
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+++
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>
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