[kb911]

Hey there. Although I have an earlier car, you might want to check a couple of areas that ended up being the source of my squeak. Check the tightness of the mounting on the foot-well vents (two nuts each accessible from the frunk. This of course requires removal of the panel in the frunk that protects the defrost/ventilation blower.
And while you are in there, also check the flexible pipes that connect the blower unit to the defrost vents. Give the one on the driver's side a wiggle to see if you replicate the noise. Good luck!