Nope you can load one in front and 6 in back and listen to any of them. Yours is a bit different than mine but just push the CD button and it should go to the single disk first then to the changer when you push it again.

 

Ssswwweeeeeeeeeeeeett!! MP3 Disc - it works !

Called in sick, kindled with google and resolved this myth (atleast with my PCM 2.1)

Long story short, for anyone who is interested, lost people cluelessly googling amonst scattered info and want to play mp3 discs in your porsche - here is what you need to know.

Keeping it simple - what you need..

porsche (any model) manufactured post may 2005
Having PCM 2.1 (wont work on CDRxx, with atleast what ive read so far)
PCM software version - 0402xxx or higher (may not work on lower)

Data disc (mp3 files) burnt at the slowest possible speed - with ISO 9660 File system only - without relaxing restrictions - mode 1 only. (with higher PCM SW versions, can choose/use mode2x)

So I burnt a trial disc with 45 random mp3 files, at 12x speed (8x failed) and it was recognized in a jiff by the system.
(Attached pic)

What did I achieve - saved hundreds of bucks in replacing this restrictive archaic system, peace of mind

:cheers: