2006 Package 8 Unknown Sound Source(s)?

Anyone heard the "buzzing" sound that sounds like a hornet, wasp or bee is stuck under the dash on the drivers side documented in the video below?

I've heard this twice now since driving during the heat of the day the last two days while out driving. The first day when I got on the freeway and yesterday was shortly after I left the neighborhood.

Wondering if is related to this switching-rubbing like sound that I observed prior where I don't hear that sound as of late:

 

@bisco et.al. The buzzing sounds louder after this time if you can ignore me rambling and the other sounds:

 

The sound in the second video I believe is different and wondering if there is some sort of duct-vent door actuator or something going back and forth.. That sound was first noticed in the winter time and appears to have something to do with the blower controls, regardless of AC or Heating. Since is intermittent, I've not tested yet with the AC or Heat unit turned off.

Someone on Youtube noted might be the 3-way coolant control valve. I found this link on Reddit with three different examples of noises where were noted inverter or 3-way coolant control valve, though mine doesn't sound the same.