Frankiemigs

Just picked up a mint seat of B8 S5 front leather seats. I have an 09 b8 a4 3.2L. Full heat memory seats. Was reading that the seat rail needs to be swapped in order to get seat belt to fit. As well as possibly airbag wire harness. Been looking on forums and I can’t find exact answers. Any info would be very helpful. Or if anyone has done this before and can provide any input. Thanks.