Very interesting, I wonder what the grid on the passenger side back foam is for, maybe the 05 seats had a heated passenger side back? There is a grey connector that has 4 wires coming out of it and I cant see it being part of the seat airbag system as it is connected to the grid on the foam and the airbag has its own electrical wires and doesnt connect to that grid. Yes, the driver side bottom doesnt work however all wires in the diagram are connected however, again there are some wires present that are not on the diagram. Could you check the 05 seat diagram? TIA, the mystery continues.....