KSON (103.7 FM, "103-7 KSON") is a commercial radio station licensed to San Diego, California. Owned by Audacy, Inc., the station broadcasts a country music format. The station's current call letters and programming originate from a sister station now known as KWFN. Following Entercom (now Audacy)'s merger with CBS Radio, the new sister stations swapped signals to improve KSON's reach following the divestment of its former simulcast partner on 92.1 FM. Prior to its current format, the station had aired beautiful music, top 40, various adult contemporary formats, and classic rock formats, as well as CBS Radio's ultimately unsuccessful hot talk format Free FM.