Back about ten years ago, Sirius had three satellites flying over the Western Hemisphere in a figure-8 pattern. Two were active and the one over South America was turned off. Eventually, one was turned on while the other two were off. (I wouldn't be surprised if all three are now turned off.) Meanwhile, XM had two geo-stationary satellites, similar to satellite TV. Sirius satellites gave better coverage to the northern border, but stunk in garages. XM, it was my understanding, was essentially the opposite. My Sirius coverage would generally die out in garages and tunnels. I am now running an Onyx Plus. Question: Why does it still crash out in garages? I thought these areas were supposed to be better, since I'm no longer relying on figure-8 satellites.