Multi Function Steering Wheel Airbag.

[Sveneng]

Does anyone know if the steering wheel airbag cover is an individual replacement part or does it only come as part of a complete airbag unit?
I'm asking as after installing the cruise control stalk today and spending some time cleaning all of the MFSW while it was removed it leaves the silver trim around the Audi logo in the centre of the wheel (airbag front cover) looking a little worn.

 

[Sveneng]

To answer my own question, I've found a new one on eBay for £45 which I've just purchased after confirming with the seller that it'll fit. I'll leave this thread here though in case someone else has the same query.