I own a 2008 S550, and I recently subscribe to a trial version of SiriusXM Radio. I noticed that my stations were limited to approx 15-20 stations, and did not include the Sports stations (specifically Fantasy Football Station) that I was looking for. I called SiriusXM and they said that my radio was limited and could not support their premium package (which included the Fantasy Sports Radio Station).

Does anyone know anything about this? Specifically, that the 2008 S550 radio does not permit access to Sirius XM Sports radio stations and other premium package(s).

Thank you.