when im at a complete stop at idle i hear noises from my belt area..then i tried turning the ac on and the squealing noise would be louder and when i turn it off it would settle down a bit..all belts were checked and none are loose...all seem to be fine..i even sprayed belt dressing..any help? maybe ac belt needs to be changed to tensioner of the belt or some? any help thanks oh yea and its in a 99 gsr 75k