I am in the midst of a one year Sirius sub. I also have XM for the next 3 years. With the new lineup changes, I don't need to keep both services active. Just wondering if Sirius charges a cancellation fee if you cancel before the year is up. If not, do I get back the unused portion of my subscription fee? I may only have 3 months or so left on it. I think it renews in February or March.