2003 Pathfinder satellite

[jwl9528]

I bought my 2003 Pathfinder in Nov. The satellite radio worked when I bought it, I think the previous owner paid for it. A week ago I pressed the radio button to scroll from the FM to the satellite page on the head unit. Satellite did not come up as I pressed radio like it did previousely. It should go from FM1 to FM2 to AM to satellite. Well satellite isnt there. I caled sirius and had them switch the signal from my other car to this one, well thats not fixing it. Is it the head unit, just does not sound like it because everything else works such as FM AM CD, or could it be a programming issue with the head, or can the radio be reset. It is the factory Bose head unit. Any help would be appreciated. I miss my satellite radio.