WCAR (1090 AM) is a commercial radio station licensed to Livonia, Michigan, and serving the Metro Detroit radio market. It airs a Spanish language format as a simulcast of WSDS in Salem Township and is owned by the Birach Broadcasting Corporation. Because AM 1090 is a clear channel frequency reserved for Class A stations in Little Rock, Baltimore, and Tijuana, Mexico, WCAR must broadcast at a lower power and with a directional antenna to avoid interference. By day, it transmits 250 watts and at night its power increases to 500 watts.