Coverage map for sat radio is anywhere in the continentel US, except under bridges, tunnels, and heavy trees.
crutchfield has soem good information on satellite radio.
Your first decision is which service you want, XM or Sirius. Go to each of thei web sites. Listen to the samples, compare channel lineups.
I have a Audiovox SIRPNP3 with car dock, and I had Sirius built itn othe OEM HU on my last vehicle for 5 months. I'm pretty happy with the music, but many songsget repeated often on the popular/current music stations.
