Sirius is what Hertz carries. Pretty darned good.
But heads up on this stuff. The frequencies in use don't penetrate walls. A portable satellite radio won't work indoors.
I just took my little XM antenna off the windowsill and brought it in the room and put in front of my amp, about 4 feet into the room and I still have full lock, if I turn it away from the window I start to lose but still get programming, about 6 feet into the room I get the skips, in the hall it's gone.