SiriusWM6 now will update channels based on your subscribed package. If you can get the channels on the web you can get them on the player. This version does not support Canadian Subscribers.
http://forums.geekstoolbox.com/showthread.php?t=25946
I also fixed SiriusWM5 for the Canadian Subscribers.
http://forums.geekstoolbox.com/showthread.php?t=27268