CD Changer Ready?

[all2kool]

I have a 1992 525i, it has the factory AM/FM Cassette. In the trunk, a badge indicates that it is wired for a CD. Does a CD Changer adapt to the current head unit, or do I need to replace the head unit?

[DanQ]

If the head unit looks like the one here: http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7923399957&category=38640&sspagename=WDVW
then it should work fine.
I have the same head unit with a BMW changer. I was told that the changer is really a Pioneer CDX-M30.

[Patrick]

http://www.pie.net/bmwpiom.htm
http://www.audio-warehouse.com/detail.asp?mdl=BMW-PIO/M
http://www.unofficialbmw.com/e34/stereo/e34_cd_changer.html