Amazon fit claims my 2021 Prime is not compatible with the Hella model 012010901 that I bought too. But it's already installed so I know it works perfectly.

The one Amazon recommends first as an alternate and claims as "this fits" does not have a plug that matches the Toyota harness.

On a related note, when a product claims 300dB volume, realize that is enough to kill you and everyone in a 1000' radius at minimum. It's far louder than a nuclear bomb. So you probably shouldn't trust that manufacturer's claim of "universal fit" either.