Not sure what you are talking about @nikolai.khishigjargal . Real car or AC car ? If it's about your real car, I'm afraid this is not the best place to write about. Good luck.
I bet he is talking about the Opel Corsa in AC, and he has no sound, due to AC RC1, the Opel Corsa doesn't not exist in Mongolia (Opel is European) Just my 2 pence worth Fordie