CD Changer not detected on 4030 stereo

red_dwarfers · Unread post by **red_dwarfers** » 04 May 2009, 22:20

I've been fitting a Blaupunkt CDC-A03 CD changer to my Xantia this weekend to go along with the 4030 head unit thats in there now. I've fitted the 8 pin miniDIN loom from the boot to the head unit and wired it up using pinouts from the forum and the now deceased steve.jellybaby.net site which I found in PDF form and the following nuggets of info dug out from the forum library :

PDF -
RC and CD Changer C
pin 1 - CDC R
2 - CDC L
3 - CDC ground
4 - U5/REF
5 - A2
6 - A1
7 - RC BEL
8 - RC ground

The cable pinouts should be something like this:
Power Pins A
Pin 1 - N/A
Pin 2 - N/A
Pin 3 - N/A
Pin 4 - 12V
Pin 5 - Automatic aerial
Pin 6 - Illumination
Pin 7 - Ignition
Pin 8 – Ground

The only thing I have not followed is on the PDF link with regards to the 12v ignition switched input which is now connected to the 'official' switched power.

</background information>

After checking the wiring, the head unit fires up as normal and the CD changer does it's seeking for CDs all the way up and back down, it ejects the CD cassette as normal and detects a CD when put in and spins it up for a bit.
The head unit however is being ignorant and not detecting the CD changer, after pressing the MODE button, it goes to find a tape in the deck (which incidentally is broken as it makes an unhealthy noise), press again and it will go to the AUX port if I have a plug in there, press again and it will go back to radio.

I have checked using an Ohm meter that all the wires connect from the boot end, right up until the newly modified ISO plug and all it well.

Any ideas?

Im presuming the head unit detects the CDC by recieving packets from it via the data line on the 'power connector'

Ross_K · Unread post by **Ross_K** » 04 May 2009, 22:55

The 4030's the old radio isn't it?

I dunno if this is of help - pinouts for Blaupunkt stuff of a mid-90's vintage:
http://www.michaelneuhaus.de/golf/golf4stecker.htm

DickieG · Unread post by **DickieG** » 05 May 2009, 06:23

The CD changer Citroën used on a S1 Xantia was a CDC-A05 so I wonder whether you have the wrong changer.

admiral51 · Unread post by **admiral51** » 17 May 2009, 20:38

Is there anywhere that gives an idiots guide on how to fit a CD changer

I have checked that i dont have the wiring loom for the changer although i can get it from citroen at £115 ish

I have the 4030 head unit and pretty sure i can get the changer

but im not sure on the wiring side of things

DickieG how sure are you on the CDC-A05 being the correct one

Colin

DickieG · Unread post by **DickieG** » 17 May 2009, 21:18

admiral51 wrote:DickieG how sure are you on the CDC-A05 being the correct one

I still have the box for the CD changer I bought from a dealer when XAN71A was new.

admiral51 · Unread post by **admiral51** » 17 May 2009, 21:24

Thanks DickieG sorry to distrust you

Have done a little bit of digging for some info on the net

Blaupunkt site has some good info catalogue pdf file

Blaupunkt vehicle specific information vehicle check sheet

Colin

Unread post by **xantia_v6** » 17 May 2009, 22:21

I can confirm that the original was CDC-A05, but I have changed the CD changer a couple of times due to hardware failures, and at least one of the replacements was a different model number from a mid-90s BMW. I think any Blaupunkt changer from that era should work (but reportedly, some newer Blaupunkt changers will not).

I think I posted the adapter lead connections here a few years ago.

red_dwarfers · Unread post by **red_dwarfers** » 27 May 2009, 19:37

Thanks lads and lasses

Xantia V6,

what model changer do you have in yours at the moment?