My personal experience is that this is a problem with the technology, not necessarily your individual unit. I've had a few Bluetooth earpieces and always gotten the same reports from those I talk to. Sometimes when I'm on the freeway it sounds like I'm in a wind tunnel or the bathroom with the water running and sometimes it doesn't. I've had these same reports already with the Subaru hands-free, but... I don't know, it might just be me. The only other thing I can think of is to see if the owner's manual has anything to say about it.