 By 1942 the advertisement agency's management founded WIAC at 580 kHz, with Félix Muñiz, the brother of Tomás Muñiz (and uncle of Tommy Muñiz, as its administrator.Due to the untimely death of Félix, Tomás became the station's administrator soon after.WIAC was operating on 580 kHz in San Juan from 1942 to 1947, and it is currently occupied by WKAQ.