2022 Limited 8k miles. Humming/buzzing noise between 40 and 65mph. Loudest at about 55. Dealer checked it out and said it’s not a mechanical issue and they want to start by replacing B pillar molding. Waiting on parts. I’m not too confident that’s the problem. Other than the noise it drives totally fine. No vibrations etc. Anyone got any ideas? Tires all appear fine but could it be a tire issue?