I've noticed when cruising there's a low "whrrrrrr", sounds like it's coming from up front. At lower speeds it sounds repetitive in that its "wuh, wuh, wuh, wuh" and speeds up with the speed of the car. Very weird. Sounds exactly like a rubbing disc. But I changed both front discs and pads (they needed to be done anyway) but the sound was there before and after. It's a heavy "wuuuuh", very hard to describe! My next guess would be bearings but this normally a constant noise right? Mine is a little more regular and related to speed. It's bugging me and very hard to diagnose, it just makes the car LOUDER on the road. Any suggestions?