Hey again all,
What the heck are these vent things? One is on the passenger windshield pillar, and another up top behind passenger on the ceiling. There aren't any drivers side.
Then there are two two of these on each side left & right of the cabin light/sun roof roof switches.
Function? Are they all related?
Thanks !!

 

I believe they have two functions, a part of the vehicle alarm/security system and also to help determine if the passenger seat is occupied for the SRS...

 

Thank you. Learning more and more as I drive and maintain this beauty.