sentences:  The former KUNX and KKZZ then exchanged frequencies, with the KKZZ calls landing on 1590 AM on March 5 and KUNX's Spanish programming resurfacing on 1400 AM.During the 1590 AM frequency's second stint as KUNX starting in April 2008, it aired programming from Mexico-based news/talk network Radio Fórmula.In February 2013, the Radio Fórmula programs moved to Gold Coast Broadcasting sister station KKZZ on 1400 AM.