SiriusXM really annoys me.
The Mustang has Sirius, so I created a SiriusXM account when I registered that radio.
Now, with the S2000, I bought a SiriusXM radio tuner so I can have it in that car too. I log on to my SiriusXM account and go to add a new radio. I type the radio ID in and it tells me I can't add an XM radio to a Sirius account.
So, I had to log out and create a SECOND SiriusXM account for my XM radio which is labeled SiriusXM.