Search for a specific horn signal

Moin,

For an update of my session for multiplayer mode, i want add a invisible horn signal that blow the horn if the human driver drive over a point (as example the beginning of the loading area).
All hornz that i found on the DLS only works for AI driver, if you pass the point with human, nothing to hear.
But i don´t want input AI commands.
Can anyone please point me in the right direction?
Excuse me please if the question already answered anywhere, hasn´t found it.
Thank you for your help in advance.

The only way I can see this is with AI. You have a invisible AI when the player hits a trigger that prompts the AI to sound horn. I really dont see another way of doing it. Or you could do a rule where a trigger makes the play sound rule.

hert:wave: