I got it working. It may seem brainless, but I have called dealer for technical support and first think they said "Did you check the volume control". I didnt know what he was talking about, but he explained that there is a little knob just like the one you have to control volume of your radio. This knob is located under your steering wheel. )))) Sure,it was there. I turned it and works. I wouldn't think there was such a volume control knob.
Well , now I know.