I may have to consider a bearing failure now. I took it to my local shop today, and long story short, they couldn't find anything. They looked at all the brakes and they said they looked fine. I'm not sure they checked the back like I asked though. Like most shops, they did what they felt was needed.

Anyways, it's still making the noise, hopefully the dealer will find it. I hope it isn't a bearing, or else Ava will be out of commission for awhile.

Sigh...