Rattle in the area of the center of the dash @ the speaker grill

I have an issue with a rattle in the area of the center speaker grill on the dash of my 2011 tundra. I replaced the clips on the grill and that didn't releave the problem. There is no speaker in that area, but if with the speaker grill is off I press down on the dash at the right side of the area where the grill was the noise goes away. I tried to stick a rag in the cavity below the grill and it still rattles. Any suggestions?

 

Short of tracking the rattle down and tightening or dampening it, not much you can do. 13 year old truck, she's gonna rattle and groan a bit.

 

The lens on the clock/ thermometer display may be the issue. A little felt stuffed around it might take care of it

 

Did you ever solve it? I think I have the same rattle. Same year.