Wires under my sheat

I was cleaning out my car and under my driver side seats I found 2 sets of wires with plugs in it.There is one big plug under passanger I dont have pics until tomorrow. The I dont have power seats. What are they any idea? Anyone else found them?

I think its something for a radio or dvd player or something. I don't use it though. I have no idea what the ones under the drivers seat are.

I think power seats

Like the motor connections or?

That is what I would guess.

rear o2 sensor maybe