Originally Posted by Gramps
Was it making the noise before you had it serviced? How long before? Does it seem to be coming from one corner (tire) or somewhere else.
Possibilities: rock in tread of tire, brake pad sensor indicating pads are worn down, wheel bearing. Since engine speed doesn't change the noise but speed does it sounds something in the wheel assemblies.
It started after having it serviced. It seems to come from the front, maybe the front passenger. I will check for rocks and jack up and check the wheel bearing tonight. The brakes work great still, but they are stock - so it probably would be a good idea to maybe change them.