No, I haven't found the noise yet. I'm thinking it's the bearings or CV's but wouldn't it make a different sound when turning. Especially the CV's I thought would make a clanking noise while turning.
I was told that it was probably the tire at the dealer service. They said they rotated and the sound went away. They were wrong. They never drove it before hand and never knew what to listen for. The sound is most prominent at 45-55 mph.
If your like me and have driven this quiet car for 10 years you're acutely aware of any new sound it makes. My mileage has dropped from 49 to 43 in the past year.
Goin' for 500K!