I may be mistaken but I thought I'd read you can switch off somewhere?Had this done at Litchfield last week.
the answer is 2.2 Ohms.
I supplied 2.7 Ohms as that's all Maplin had. Litchfield installed them for me, (two required for passenger airbag) and they work a treat.
No airbag warning light and no chance of the airbag firing at my children when sitting in the front seat.
I have not disabled the airbags in the seat as no studies have shown them to be any more dangerous for children unlike the front airbags which can kill children in boost seats because of their closer proximity to the bag.