Not to mention that, supposedly, some of the stations do have commercials. OTOH, it could be a way to find music you like that you don't already know about. But having an empeg doesn't preclude having XM, too. Crutchfield sells a number of XM tuners that could attach to your empeg. The Jensen SSR2000 and the Sony DRN-XM01C2 can both attach to the aux input on your empeg, and most of the rest can send the music by attaching to your FM tuner, if you have one.
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Bitt Faulk