I'm not sure what board recommended option you are talking about exactly but there is an option available called the Dennison IceLink iPod Integration. Not sure if it will work on your exact system but sounds like it and worth looking in to. Bumperplugs in Charlotte, NC (
www.bumperplugscom) carries them and according to their site:
"Absolutely the #1 product for iPod integration on MOST bus vehicles. This unit will allow seamless integration of iPod data to your fiber optic (MOST) bus Porsche audio system. Flawless digital sound piped right to the head unit, NOT a cheap FM modulator. Fits all Porsche vehicles from 2003 to present, Nav and non-Nav ready, plus Audi, Mercedes, Saab, BMW and others! See details on the order page."
From the feedback I've heard, people seem happy w/ it.
Good luck
