I just received my Model 3 and had it serviced because of the echo that could be heard by the caller on the other side. In addition, every bump I make on the road they can hear. The service center says that it is common and there’s nothing they can do except have me turn down the volume. I even tried to adjust the volume settings as per advice from this forum but it didn’t work. Any other advice??? Apparently the S doesn’t have this problem because their speakers are different than the Model 3