I have had a Sirius Sportster for about six years and it finally died. I need a new receiver, the issue is that I have a bracket mount in my car already and don't know if all the new radios would fit. I went to Best Buy today and they have only one radio (since I am a Sirius-only lifetime subscriber), the Starmate 8, for $139.99. The guy working there was nice enough to take it out of the box and connect it to make sure it was compatible and it was.

What are my other options? I don't want anything fancy - just one that has presets. Is there a reputable place to buy older models of radios?

Thanks in advance for your help.