Yaris Hybrid 2017, where is the access hole in the firewall?

[Gant]

My wife bought a Yaris Hybrid 2017.
I want to install a cab heater but can not found a hole for the cable from the engine into the compartment, i.e., I want to get a cable through the firewall.

Usually one can find a bundle of cables going from the engine into the compartment on the passenger side of the car.

Can someone please give me information about where I can find access hole in the firewall?

Thank you in advance.

[IllusionX]

Look at the drivers side on a LHD Yaris.

If you look up from under the steering column, you should see it from inside.

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