The Audi 10 CD changer was manufactured by Blaupunkt under license from Sony, which would make it a Blau/Sony with Audi markings. I figured that a Sony was going to be easier to find, so that’s what I ended up with. The unit in my car is a Sony CDX-A30, which fits the stock mounting brackets perfectly.
AFAIK, as long as it has the single 13 pin DIN cable hookup (the blue cable shown in the picture) it should interface properly with the stock radio and transceiver (the transceiver is what makes the changer visible to the radio).
Transceiver: 4A0 035 239 (Blaupunkt 7 607 765 082)
Bracket: 4A5 035 113 (sedan)
Cover: 4A0 863 716 (sedan)
FWIW, a quick search on “Sony CDX-A30” at deja.com turned up the following information – Caveat emptor, no warranty expressed or implied, etc. 😉
John Durbin wrote:
In chronological order:
Sony CDX-A20 OK, a little noisy esp. with some head models
Sony CDX-A30 Watch for leaky caps taking out the +/- 5V DC converter Sony CDX-A2001 30V supply driving the audio stage, nice D/A converter Sony CDX-A15 Leaky cap problem solved during CDX-A15 production Sony CDX-A100
John Durbin, DEI Audio