Usually, you have to call every 6 months to get a good Sirius rate. I just called to do the usual negotiation and they offered me 12 months for $60 plus tax and fees =$68. The csr claimed it was an end of the year special. I see they actually have it front page on their web site. You may be able to switch by just doing it in your online account.
Nice to lock it in for 12 months. 1-888-601-6302