[k2ue]

I just took delivery on a 2010 Premium -- is that a hole plug at the center front of the dash just behind the windshield glass and between the defroster vents? Perhaps a place I can pass thru the cable from an amplified GPS "puck" on the dash down to the radio area?

 

[SubieOutlaw]

I believe that is the sensor for auto headlights.
Run the gps within dash and up at the passenger door.
I ran mine out the rear liftgate and mounted it on the roof.