I have a Mercedes E550 w212 2009 and I bought a 10 inch screen system Android and worked all the functions but there is no sound and when the factory screen is also not sound
MercedesMedic 10 months 2 weeks ago
MB uses optical lines to connect the various components. If one of them is taken out, such as the head unit, there will be no sounds.
Check with the seller to see if they have solution for your car.
ali1411a 10 months 2 weeks ago
I removed it and installed it again but the audio did not work and also when I reinstalled the OEM screen the audio did not work either