XEDTL-AM

The station during this time was known as "Radio Rin", a children-oriented format that came to an end in 1991 with the callsign being changed to the current XEDTL-AM the next year.

Rocha ran the station under the Radio Fórmula banner, sparking debate on whether state property should be commercialized as such.

In 2003, the contract was rescinded as Rocha could not pay to keep operating 660 AM, with the station broadcasting tropical music as "Candela 660 AM: Tropicalísima".

On April 1, 2024, XEQK and XEDTL exchanged their formats, returning Radio Ciudadana to 1350 AM and Tropicalísima to 660 AM.

Radio Ciudadana got its start on XEQK-AM 1350 in 2003, displacing the Hora Exacta time service after 59 years.