I have a 2005 300es with the same radio button. I asked the dealer why I don't have xm radio. He said that the cars did not automatically have xm radio installed. If you want satellite radio, you have to get a certain module installed into the car.
Don
The present GPS data disc has the following info:
w41
86271-33044
464210-0581
Data ver 4.2
Anyone know if an updated data disc is available. If so, how is it identified, and how can it be obtained?
Thanks
Don