The best replacement for sirius is xm.

The best alternatives to sirius are rated as following:
★★★★★  xm
★★  pandora
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★  vega
★  polaris
★  eridani
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★  xm canada
★  venus
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★  sirius xm radio
★  xm which is better
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★  xfm
★  xm subscribers
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  internet radio
  procyon
  delphi
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  bellatrix
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  rexion
  snape

Your alternative for sirius is not listed? Suggest!
Speaking about sirius, one probably shouldn't forget about xm antenna.

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Google Trends

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