This station began in 1999 as a simulcast of KOGO, the heritage news/talk station in San Diego. Clear Channel wanted a more reliable signal for KOGO in southern Riverside County, which has become a significant exurb of San Diego (and also of Los Angeles, for that matter). Three years later, Clear Channel changed the simulcast from that of KOGO to that of hot adult contemporary station KMYI and the station became KMYT. The format lasted for two years until it was changed to smooth jazz. Then, due to sliding ratings in the smooth jazz format both in-market and nationally, the format was shifted to AAA on August 29, 2014.