I bet it is the horn contact ring being chewed up by the harder (beryllium?) copper contact strip. Gotta pull the wheel and see.
or it could be plastic surround rubbing.

alistair

On Nov 23, 2013, at 5:36 PM, Alain Thibault <alainthibault@TELUS.NET> wrote:

> Allo all
> My steering wheel makes noise as if there was sand in the mechanism... which is not the case of course... It seems to be moving freely though...Would that mean that it needs to be oiled? Actually can I put oil in there? 
> Thanks
> 
> Sent from my iPad 2