to get the module, you will lose your cd changer. When I bought my 06 in the begining of 09 they included it in the sale saying that it should be available soon... a year later I gave up and had the credit applied to tires for my Z4.

While I waited, I bought a sirius starmate unit and ran the sound through the aux input in the glove box. you can have one installed there. Sound is good with the right cable. And I like that I can pause it up to almost an hour for talk shows, then fast foward through commercials. Plus the reception on the starmate is so much better than the factory unit I have installed in my Z4.