The backlighting is out on my home Sirius Clarion Calypso and I'm wondering what my options are. I'd like to continue using my Sirius antenna and extension cable, as replacing it would be a fair amount of work. I also need something that will transmit on an FM frequency, and obviously a home base and power supply. Will SiriusXM sell me a Sirius tuner or will they want to switch that account to XM? I have two auto accounts, one Sirius and one XM.