Which city in Mexico, part of the state of Quintana Roo, is an island located in the Caribbean Sea where the radio station XERB-AM/XHRB-FM is broadcasted on 810 AM and 89.9 FM?
Cozumel: Cozumel (] , Yucatec Maya: "Kùutsmil" ) is an island and municipality in the Caribbean Sea off the eastern coast of Mexico's Yucatán Peninsula, opposite Playa del Carmen, and close to the Yucatán Channel. Cozumel:  The municipality is part of the state of Quintana Roo, Mexico.
i don't know