Yeah, it's like satellite TV.
Our Mariner came with Sirius satellite for 6 months, also, but since the Mariner's my wife's, I hardly ever listen to it since my Focus doesn't have it. So, I usually listen to a lot of Iron Maiden, Judas Priest (they're both from your side of the pond, camusdarrach

), AC/DC, Metallica, Megadeth, Green Day, Foo Fighters, Weezer, 80's music in general, some country, and sports talk programs.
When I ride or drive in the Mariner, I end up listening to lots of 80's music, NPR, Kylie Minogue, and some other techno/dance music. Luckily for me, I like what she listens to for the most part. I make her change the station when the political talk crap is on NPR though. :stop: