I have only noticed mine doing this when I had my phone plugged in charging. I assumed it was a combination of a cheap USB charger putting out some interference, amplified through the charging cable acting as an antenna.
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2012 370Z Base Gun Metallic--2015 Altima 2.5SV Gun Metallic--2020 Chevy Silverado RST--1965 Chevy C10 Stepside Shortbed
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