WHIN was joined by an FM station in December 1960 when 104.5 came on the air. The FM station has broadcast under many call letters, but probably its most famous days were in the late 1970s and 1980s when it was known as KX (pronounced "Kicks") 104, a popular music station that battled with Nashville stations for top listenership. During that time the station was owned by Ron Bledsoe, who for years had commanded CBS Records in Nashville, and was a former employee of the station in his younger years. Currently, the station is Citadel-owned sports radio station WGFX, which targets the Nashville market and is the flagship station for the Tennessee Titans and Tennessee Volunteers.