yeah the headunit is the way to go. Maybe Porsche will start including Sirius or XM with the 987. I didn't want to replace a perfectly good headunit but after spending $50 for the car adaption unit and $30 for the cubby hole bracket well that's already $180 total, which is what low end headunits with built in Satellite radio start at. But the display is a little cooler on the PNP screen. THere's a even a ticker on the CNBC channel.
On my treks into NYC from NJ I have to switch to FM radio when going through the tunnels and
every time there have been commericals playing all the way through the tunnel
!
I better keep a CD in there and just disable FM altogether.