3rd gen dash rattle

The passenger side tweeter/a pillar was the culprit on mine.
I put a piece of felt in there. Here's a pic of where the felt is (I trimmed it after I verified this would fix it)

 

Could it be the piece of foam in your fender rattling around?

 

A late reply and a shot in the dark…but another culprit of rattling that I’ve experienced is a broken window clip inside your door panel. These are the clips that connect onto the glass itself…sometimes they break loose and just kind of hang and rattle.

 

I was sure I had a dash rattle. 2022 Tacoma. Turns out it was the Map light trim against the headliner. Just pushed up on the headliner all the way around the trim. I could hear the two separating.
Problem solved.