I purchased a new 2018 Honda Accord in late September 2018. I soon noticed an occasional "howling". I've hear it at speeds between 25 and 70. It is VERY distracting and makes it difficult to hold a conversation. It gets so loud you can;t hear the radio! The sound seems to come from the front windshield column tweeters. It starts out low and grows to a very high level in a few seconds and then immediately STOPS. It may not come back for 20 miles. The dealership has verified the noise and has indicated that Honda is aware of the problem and it is currently "under investigation". It has been months with no indication they are closer to a solution. This isn't the old mirror wind noise Honda once had. This sounds like a soft deep "woooo" that quickly ramps up to "OOOOO" and then stops. Holding a conversation in the vehicle is impossible. The vehicle has 2,100 miles on it and I hate the car now! BTW: The passenger thinks it is coming from their side, the driver thinks it is coming from their side.