XERED-AM

[5] Not long after Cárdenas was replaced by Miguel Alemán, XEFO was sold in 1941 to Francisco Aguirre Jiménez, who changed the call sign to XEQR-AM and used it to launch what became Grupo Radio Centro.

XERCN-AM was owned by Rafael Cutberto Navarro through concessionaire Radio Central de México, S.A., with the concession history of XEFO.

Radio Red's flagship newscast was Monitor, which started on September 2, 1974, and whose morning edition was hosted by José Gutiérrez Vivó.

After a legal conflict between the two sides that culminated in a lawsuit won by Infored, in 2004 the Monitor newscasts were removed from Radio Red after almost 30 years on air.

The Formato 21 newswheel format was rebranded as "Radio Centro Noticias" and moved to XERC-FM beginning on February 1, but ultimately disappeared at the end of the year.

On August 8, 2019, the station's talk programming was combined with that of XEQR-AM in a single online stream under the latter's "Radio Centro 1030" banner.

On September 9, 2021, the Federal Telecommunications Institute authorized GRC to relocate XERED-AM to the transmitter site of XEMP-AM and XEQK-AM, owned by the Instituto Mexicano de la Radio.

In June 2022, XERED returned to the air intermittently after a 41-month absence, broadcasting Universal Stereo Online programming as a test signal.

[6] On July 4, it formally resumed broadcasting as a full simulcast of XHRED-FM "Universal", although with XHRED's advertising replaced with PSAs and cultural interstitials similar to those previously aired on Radio Red.