 For more than a century, AM radio has evolved to meet the needs of our community in their car at home or on the job. More than 80 million listeners depend on AM radio each month. AM radio is also the backbone of the emergency alert system, which keeps us safe in dangerous times. It's reliable, free and public safety depends on it. Text AM to 52886 and tell Congress we need AM radio in cars. This message furnished by the National Association of Broadcasters.