Congress wants to force carmakers to keep AM radio, but it needs to rebuild the public’s trust

A lament about the demise of AM radio has been rising in the halls of Congress. Several automakers, most notably Tesla and Ford, have decided to stop putting AM radios in their electric vehicles. They claim their electric motors interfere with the audio quality of the signal and insist that FM and satellite radio are enough. Given that people who listen to radio tend to primarily do so while driving, a trend like this could threaten the commercial viability of the over 4,000 AM...