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Message: <blockquote data-quote="2025ChevNox" data-source="post: 29414" data-attributes="member: 10476"><p>Instead of unplugging those microphones, tell your dealer service department that you're hearing a buzz, roar and road noise at highway speeds. This should lead to them installing the ANC update that will bring some improvement to your Infotainment sound while fixing the buzz and road noise roar. Never attempt to solve issues while under warranty without discussing with your dealer service department and letting them do what they do.</p></blockquote><p></p>