Ok heres the deal, my g/f wanted to have lunch with me because she got out of class early today, so I hop in her car 99 grand am GT and we start going then arround 15-20mph I hear a rotational hum sound(she cant hear it, but I can). The best way I can describe the sound is when a TSL/bogger is going about 5-10mph but with less vibration, and a lot quieter. The hum stays the same volume up to 60-70 where road noise takes over and I can not hear it that well. Now when she had it in the shop 3 weeks ago for new tires, I told them to check over everything/preventative maintence.(I useually would have done this but it was snowing at the time and they were going to have it on a lift anyways.) They said everything is in good shape no worries. Now I'm going to go check it out but does anyone have any Ideas on what it could be? Wheel bearing?? or CV's. Its comming from the front and its not engine related because I reved it and the noise is not there. I can not feel any vibes or play in the steering so I'm kinda stumped. Well I guess I'm just going to go see what it is before it gets to dark.