In August 1988, it changed its format and name to "Stereo 97 7" and now featured mostly Spanish-language pop, becoming a more general CHR station with music both in Spanish and English during the following years.
On October 17, 2018, the station began airing a morning newscast hosted by Carmen Aristegui (which is produced solely by her), and on December 3, GRC announced that XERC-FM would flip to a talk format beginning on January 14, 2019, retaining the Radio Centro name.
Carlos Loret de Mola's Sin Anestesia newscast did not carry over, as the host opted not to accept the move of his program from its morning timeslot;[4] he would return to W Radio.
At launch, the station featured English classic hits musical programming on mid-morning, overnight and weekend slots, but they were dropped on February 1 to make room for the return of the newswheel format previously known as "Formato 21", now renamed "Radio Centro Noticias".
In June 2019, Sarmiento and Juárez left GRC to join the new Heraldo Radio, at the same time a new newscast hosted by Alejandro Paez Varela (director of website SinEmbargo.mx) and Álvaro Delgado (journalist from Proceso) made its debut.
The IFT approved the station to return to Cerro del Chiquihuite from the Grupo Radio Centro tower site in Villa Alpina in December 2022.[2].