Now that he has resigned as CEO of Sirius XM, Mel Karmazin says he’d like a new gig — either running an entrepreneurial company with an independent board, or helping New Jersey Gov. Chris Christie’s efforts to rebuild areas hit by Hurricane Sandy. “I would be the czar…or the pope of the Jersey shore,” Karmazin tells CNBC‘s David Faber. That might make for an interesting reality show. But Karmazin, who had a famous falling out with Sumner Redstone, says “I probably wouldn’t take it to Viacom.” Meanwhile he’s upbeat about the satellite radio company’s prospects, even after cars connect with Internet radio.