Mysterious sound under passenger seat

[vinny121]

I hear this metal on metal noise when I am driving the Yaris that sounds like it is coming from below the passenger seat. I hear this sometimes when I accelerate or stop or turn. It sounds like metal on metal and it is frustrating since I have pretty sensitive hearing. I was persistent about finding the source so I read in this forum that there is not much space for a metal on metal sound to hide.

So last week I reached in there under the carpet near the air vents below the passenger seat and found a bunch of stuff like gum, including a rubber ball but could not find any metal. But the usual sound was still there!

So today I did another search near the center console and found a metal pen. I hope this is it since it was rally annoying for some time. I hope this helps anyone fix these interior noises in their car. Just check under your carpet!