I might give this a try on my crew cab...with my flickering 2004 Silverado crew cab headlights while talking on radio with my 2pill turned on...

Check this out on Amazon
NEW 250 AMP HIGH OUTPUT ALTERNATOR FITS VARIOUS CHEVY TRUCKS SILVERADO SUBURBAN 2002-2007 4.3L 4.8L 5.3L 5.7L 6.0L 6.5L 6.6L 8.1L WITH 4 PIN REGULATOR PLUG CONNECTOR https://smile.amazon.com/dp/B06VWZQ1...ing=UTF8&psc=1

I thought it was from my dying 5yr old battery, but it's still doing it with the new Interstate MTP-78 battery...I don't remember having this issue last yr when DST switched...

Maybe I have a dying alternator that killed my 5yr old battery?

Sent from my motorola one 5G UW ace using Tapatalk