[lucgoossens]

Has anybody thought of connection the optical out from your mp3-player (iriver h140 has this) on the digital link going from the CD-Changer to the head unit ?

If I understand well the CD-changer is connected via a digital (optical fibre) link to the main system.

Does anyone know if a digital input is available on the cd-changer ?

Would it be possible to wire the mp3 digital out to the same input slot as the cd-changer ?

This should result in the best possible data transfer, including no influence at all on the bass.

[funkahdafi]

BMW most probably uses a proprietary technology on their fibre link. I don't think they use the TOSlink standard that your MP3 player is using.

[loopsandsounds]

Originally Posted by funkahdafi

BMW most probably uses a proprietary technology on their fibre link.\

Actually BMW uses an open standard called MOST.
Read more about it here:
http://en.wikipedia.org/wiki/Media_O...tems_Transport
http://www.mostcooperation.com/
TOSLink will not interop with MOST.