What is This Plug For??

[WTM75]

So I pulled off the passenger side dash panel to install the HVAC Module today and I saw this plug in there, any idea what this is for? I feel it is just sitting there, begging me to do a mod!!”
“

 

[mike19950]

Looks like the one where the rearview mirror plugs in.

Sent from my Pixel 2 XL using Tapatalk

 

[Jkieffer]

I believe he is correct it's for the mirror. And where power is received for the humidity sensor.

Sent from my SM-N960U using Tapatalk

 

[WTM75]

I’ll have to look a little closer to see what else is involved to add the atc. I’m adding the RA4 radio next week, I’ll have to see what else is involved. Thanks!