I was doing some cleaning and found this small harness with a black connector coming out from under the carpet on the front passenger seat. I couldn't find where the harness would attach to. I don't know if the '07 3500 passenger version ever has power seats or heated seats. Could it for the weight sensor for the airbag? I bought the van used but the harness looks very factory. Any idea?? Thanks

I believe that is for the seat belt warning light that is on the dash.