Rattle noise

I think speed related because revving the engine at idle doesn't cause it.

 

i only notice mine at low speeds. similar to your video

 

I’m guessing u are missing a piece of foam between dash and windshield area … Toyota being cheap on stuff .,, 40k truck my butt lol

 

I’m not sure if it’s the same thing, but I would get an annoying buzzing bass noise at lower rpms. I bought a Carista OBD2 reader and turned off the Engine Sound Enhancement (ESE) and Active Noise Cancelling (ANC), and the sound has gone away. I think it was the ANC, as I first de-activated the ESE and the sound remained. Seems like it gets stuck in a weird state in certain low RPM scenarios and makes the buzzing noise

 

Try to hold the brake in drive and slowly increase the RPM's. If you hear it, it could be a heat shield on the exhaust, or a loose catalytic converter inside the cat. body. Try hitting the exhaust with your hand near the cat's and listen. I have also seen an A/C line or something attached to the firewall vibrating. Good luck, I'm chasing marbles in my dash.