Depends on what kind of car you are driving, you might be stuck with either Sirius or XM radio as a pre installed satellite radio option.
Both of them do have similar stations and pricing. I think Sirius is a little better because it now have the bonus to able to listen to the radio online or via your smartphone.
The only complaint I have is maybe the pricing system. In the States, one can have more customized package for example: Most Music Only or Most Talks Only for $9.99 per month VS the basic here starts from $14.99. There is a bonus though is that you can listen online on your computer or downloading their apps to listen on your smartphones for free as long as you are a subscriber.
I usually just like to listen to a few stations and all music stations... I just wish I have that option!!