Radio 91X (XETRA)

XETRA-FM (91.1 MHz), branded as 91X, and sometimes identified as XTRA-FM, is an English-language radio station licensed to Tijuana, Baja California, Mexico. It airs an alternative rock radio format. The studios and offices are on Cornerstone Court in San Diego's Sorrento Valley neighborhood. The station is one of three Mexican outlets programmed by Local Media San Diego LLC, along with XHITZ-FM and XHRM-FM, in which an affiliated company owns a 49 percent non-voting stake; LMSD also owns KFBG. It is Mexico's first Alternative radio station, and has influenced other radio stations (including XHMORE) to create the Spanish-language rock radio format in 1994.