Or some much better way: Official Airbag and dummy system from BeamNG Devs itself. So it don't go broken with updates. Think about that structure you mention. Any exotic thing in existing mods, make them very sensitive for newer game updates.
I have a bug For ETK 800, When I have dummy ,Windshield Breaked with the breaking sound, but when I don't have dummy, windshield is OK!
If it is a Alt Body in the part selector use that with the dummy. With the normal body there is a roof pillar node that get stuck in the dummy arm.
You should make it clear in the description of the mod that the alt body is needed, most people have missed this as far as I can tell
Some of the cars it is needed, and I already included the how to use the mod, with a picture. Update: I see I did not add the part about the alt body. Will fix.
Dude. Look, it is in the mod. Here I'm showing it inside the car and inside the files too if it isn't enough proof.
well let me reinstall the mod if it still doesn't work it means you managed to get a kind of beta version --- Post updated --- yep it was that