Hi! I'm new here and am getting ready to order a pair of Corbeau A4 wide seats with shaved base for my 08 base Z. I don't think the factory seat has the side airbags. Do I have to remove anything from the factory seats to transfer to the A4? I see there are two plugs in a harness on the factory seat. Does the seatbelts part transfer over to the new seat or the Corbeau base? Thanks in advance for your help!