XEAV-FM 100.3 received its concession on November 25, 1963, but it had been operating since at least February 1958, making it the first FM radio station in Jalisco.
Meanwhile, it proved enough of a success in Guadalajara that Imagen expanded the format to other cities: Torreón, Querétaro, Celaya, Nuevo Laredo and Cancún all received RMX stations between 2007 and 2011.
In 2010, RMX began the 212 annual concert in Guadalajara, now among western Mexico's largest musical events.
On June 16, 2019, Grupo Imagen and Grupo Andrade, owners of the El Heraldo de México newspaper, announced that they had reached a strategic agreement under which Imagen would sell XHDL-FM and XHAV-FM to the newspaper, subject to the approval of the IFT.
The transfer of the concessions of XHDL and XHAV to GA Radiocomunicaciones, S.A. de C.V., a subsidiary of Grupo Andrade, was approved by the IFT on August 28, 2019.