Hi all
The last few weeks I have been researching and collating various tid bits on upgrading the audio capability in the Boxster along with some of the pitfalls and common upgrade paths available. It is mostly aimed towards Becker CDR-23 users but has a quite a bit of other useful info.
It is constantly being updated on my blog here:
http://www.geoffcoope.co.uk/blog/2010/01/18/iphone-bluetooth-speakers-and-a-porsche-boxster/
Feel free to have a read and if it helps you at all then
Thanks
Anim