Annoying Rattle

Guy's,

This may seem a very trivial post compared to the serious issues others are having but there may be someone out there who has had the same,
I have searched similar threads but cannot find anything close.
I have the most annoying rattle which I can only describe as sounding like a coat hanger banging from side to side. It is coming from the passenger side near I think the air vent and cup holder. Only happens on bumpy/uneven surfaces when the vehicle goes from side to side while moving.
Anyone out there had the same, or any ideas that I can investigate, that will be greatly appreciated.

Thanks

Have you checked the brake dust guards behind the brake discs? They corrode where the bolt holes sre and come loose.