Steering wheel polish?

[Qualia]

The centre section of the steering wheel on my S3 is starting to look a bit scruffy. The leather is fine, but the black metal is not very nice anymore. It's as if it's fading unevenly. Any metal polish you can get seems to be unsuitable for anodised metal (which it is).
Any ideas how i can polish it back to its former shiny glory?
I am not keen on spray painting it, the results always disappointed me in the past. The finish just never looks "professional" imo.

Andy