Dash rattle

Anyone experience this? Or have a good idea what it might be? It’s driving me nuts. At 1,600 rpm. Every. Time.

 

That's crazy, almost sounds like a heat shield or maybe the intake tube where it goes through the fender.

 

It’s infuriating lol. def not a heat shield.
I really don’t want to take the dash apart but it’s getting to that point.
Only happens under load too. Not in neutral, so pinpointing it is more challenging

 

I had an issue with my truck rattling from what seemed like behind the dash ended up finding a lose bolt under the carpet that held the heater box in.