I have a 2004 limited and I have noticed recently that I am getting a chirping noise comming from the wheels and the faster I go the faster the chirping is. When I apply the brakes the sound goes away. The brakes were replaced about 1500 miles ago by toyota. I took it into toyota to look at it and obvisouly it did not make the noise when they drove it. They removed the wheels ang checked for any rubbing of the brakes but they could not find anything wrong. Any Suggestions