On July 10, 1986, the station began stunting with an audio broadcast of CNN after a 30-second silence, broadcasting a news story involving the Soviet proposal having a special meeting with the nuclear weapons' control the response from the Reagan Administration, but was interrupted towards the end of the story with 12 more seconds of silence. The format was then changed to adult top 40, branded as "Y-95". The call letters were changed to KOY-FM. The station later evolved to a top 40 music format. The station gained some national attention in the late 1980s when they hired Jessica Hahn, a central figure in the Jim Bakker PTL scandal, as an on-air DJ. The station also helped to start the careers of Arizona disk jockeys Tim Hattrick and Glenn Beck. The station competed heavily against KKFR (then at 92.3 FM, now on 98.3) and KZZP, and Phoenix was considered to be the best market for fans of Top 40. However, due to the changing nature of the format in the late 1980s and early 1990s in terms of musical tastes, personalities and personnel changes, KZZP flipped to the then-new Hot AC format in April 1991, leaving KKFR and KOY-FM to battle for themselves. However, despite KOY-FM picking up a good percentage of KZZP's former audience, the station dropped in the ratings, well below KKFR, which moved towards a more upbeat, rhythmic direction to compete against KOY-FM's own rhythmic/dance direction. To combat this, in late 1992, KOY-FM began a "dayparting" approach, by playing more safe and mainstream pop/rock content during the day, and less mainstream hip hop/rock/dance product at night. However, a few months later, the station reverted to its previous sound. With all the changes, the station continued to deteriorate in the ratings.