Before i go out and buy unneccessary light bulbs, all the lights on my steering wheel are out and i was wondering could this be the cause of a fuse(if there is one that controls them) or could it just be that the lights are actually blown out.

I have an 04 i went to the dealer today and the guy told me check the fuse b4 i order all these bulbs....

fuse(s)=good

does anyone sell these bulbs and how do i replace them myself?

PLEASE HELP

Thanks in advance