KTLM received its license to cover from the FCC on August 22, 1989. However, on July 1, 1989, Bakersfield Radio Partners L.P. reached an agreement to acquire this station's permit and licence. The deal was approved by the FCC on November 1, 1989, and the transaction was consummated on December 19, 1989. The new owners had the FCC change the station's callsign to KMYX-FM on January 8, 1990. By that point, the station was broadcasting a "soft rock" format featuring adult contemporary hits of the 1970s and 1980s.