I had the Sirius Tuner installed professionally to my f900bt since I didn't want to poke around back there. He didn't put in the new antenna as the old one was already wired through the car. It plays fine and quality is great but for every station it always says "no composer". I know that it can say current song/artist and i miss that feature that I'd always had with the external unit. Is there any particular reason it would not say this? Even when i push the display button there is no information for any of the options.