I was in the Circle K/Shell station at the intersection of SR 50 and US 301 today for a few minutes and I'm not sure what music they were playing, but it was not 106.3, since I just went in to check out what they were playing and not buying anything, I only stayed a few minutes, not long enough to hear any I.d.'s of clues as to what they were playing.
I know for the rest of Hernando, 106.3 would be a good choice, but the reception of 106.3 does start to go downhill in the area and points east.