XM Radio

This may not be technically demanding but when my XM trial subscription ended Friday I assumed XM and the default to XM radio would go away. Instead when I press SOURCE it still defaults to XM but now XM has only the blather advertizing signing up for XM.

I'm hoping I can change it myself somehow or ,as a last resort, have the dealer disable XM or at the very least put anything else on but XM as a default when source it pressed.

Does anyone else have this issue and is there a solution short of immediately pressing the mute button? I found nothing in my owners manual.

Thanks.