Access from dashboard to engine compartment

[Prof67]

Originally Posted by CTScott

On the Left Hand Drive Yaris there is a giant (~3") grommet that goes through the firewall to the left of the steering column and comes out behind the battery (which is mounted to the left side, under the hood). I am not sure if the Right Hand Drive ones have the grommet in that same place on the left side, or if it moves to the right side, like the steering wheel. Put your head on the floor and shine a flashlight up along the firewall to see if you can find it.

Thank you. I have found the grommet. Can you tell me how to dismantle the dash to gain access to the grommet without drilling holes?