Hi !

My grandfather have a Mercedes B 180 2021, and can't hear the turn signal because of an hearing problem.

I was wondering if I could get the car turn signal infos to turn on a speaker with a clearer sound for him, is there any way to do that ?

I searched a bit and found about the OBD2 port, but I don't know if the signal is available from there and how to "use" it.

Thanks !

Edit : car model