I want to retrofit FBMFSW to my A3 MY07. I have a plain 3 spoke steering wheel. I bought FBMFSW with part number 420419091B and need to know what airbag should I buy and what loom? From a friend, I understood that I need 420880201C 6PS airbag and 8J0971589B for the loom Can anyone confirm this? And will it fit on A3? Thanks.