Radio News That ‘Whip Antenna’ On Two Trucks? The Reason is Radio By Adam Jacobson - May 7, 2021 0 FacebookTwitterWhatsAppLinkedinEmail A blog devoted to General Motors trucks this week anwered a most intriguing question: Why do the Chevy Silverado and GMC Sierra pickup trucks still use a “whip antenna”? The answer was simple: AM and FM radio reception in rural areas demands it. Please Login to view this content. (Not a member? Join Today!)