Torx spanner for au steering wheel removal

[Fini]

Hey guys I am confused because apparently I should use a Torx spanner with the hole in the centre to remove the airbag and the steering wheel. I tried 2 different torx spanner brands and neither of them fit into the screws. Is there a special type of torx spanner to use on the falcon? If so where to get one? The reason I am trying to remove the airbag is to see why my car horn is permenantly activated. Any idea what could be wrong?

[BHDOGS]

U need 5 star Security torx bits for the steering wheel available from eBay