Horn replacement

[Dealdelver]

Hi tried usual places, extensive googling, but can't find how to access the horn on my 2007 semi auto Yaris. I know it's location, an I know when the garage replaced it they didn't remove all the bumper, and definitely didn't put it on a ramp, but I can't see how. The only one video I've found made it look simple, but I can now only assume it was a different model. Appreciate any help.

[corradovr6]

i wonder how different it is to the Mk1 Yaris.  On mine, it was a single (10mm?) removed from the front using a flat ratchet spanner.  Not enough space for a socket though.