What do I need to run the sirius radio in the house?

How do you do run the cable set-up? I live in zone 3 and have satellite cable. Not sure if I will get an unobstructed signal...so I want to run the exterior antenna via the satellite cable set-up.

Then????

-Does the cable then become the antenna?

-How do I then hook the sirius up to this system?

-Is there a wireless antenna system I can then run throughout the house?

Any insight you have is GREATLY appreciated as this is a whole new magical world of music to me that I can't wait to get going on!

Thanks soooooooo much for the enlightenment!