What is this electrical plug under 2nd row seats?

[1995E]

I found it under the 2nd row seats. It is on both sides. It doesn't connect anywhere but to a plastic holder mounted on the seat frame. It looks like it uses pulse width modulation to communication. I plugged an LED in there to read the pulses and the 3 wires communicate very differently. Anyway, anyone know what this is for?

 

[amd2800barton]

Possibly for the 2nd row seatbelt airbags (not equipped). Not sure if that was an option on 2011 models or if it was a more recent addition.

 

[CulturalInfidel]

The only seat options I can think of that would require wiring are for the airbag seatbelts and for the electric seat release (for access to the rear row.)
The release would likely just be a simple 2-wire, but the airbag/belts would likely require more advanced communication...

 

[RedDen]

those are for inflated seatbealts