Have you had the problem again since they replaced the radio?
My dealership is still trying to figure this out for my car. I have had the loud tones blaring on the speaker as well as no audio.
Please let me know if you or anyone else is having the issue, and if anyone has gotten a fix so I can let my dealer know.
Thanks.
Also: Another thread with what seems to be the same issue:
http://www.m3post.com/forums/showthread.php?t=152287