 Years later 4ZA also switched to FM in Te Anau, broadcasting on 90.4FM.Between 1991 and 1993 4ZA ran a country music show on the AM frequency on Sunday mornings and a Classic Hits show at the same time on the FM frequency; the same was done weekday mornings where Talkback would run on the AM frequency.It was at this time that announcers started calling the station Classic Hits 4ZA-FM.