NEW YORK — Anthony Weiner is hitting the airwaves — with a Guardian Angel. Weiner, whose serial sexting scandals upended his promising political career and ultimately sent him to prison, will team up with Curtis Sliwa in a weekly two-hour radio show on WABC-AM starting on Saturday, the channel said. Sliwa, the founder of the Guardian Angels and last year’s Republican mayoral nominee in New York City, said that the show will touch on sports, politics, and the publicly accessible penis pics that plunged Weiner’s career into chaos. “He’s done talk radio — but that was right before he imploded com…