Yes! Ours sounds identical to this and it only comes from the driver’s side. At first, I thought it was wind noise, but it doesn’t change intensity or pitch with speed.
It’s mechanical in my case, I found the mirror would fold/unfold if I applied a little pressure, it would work for a couple of cycles then stop again with the buzzing sound. The buzzing sound reminds of a gear or pawl skipping engagement.
On the day of delivery, I opened a service ticket for a repair item and for a chirping sound coming from the driver’s side pillar between 37–60 mph. At first, I thought it was wind noise, but the pitch does not change with speed. The earliest available appointment is on 10/1, so I don’t yet have...