If the squeak gets louder with vehicle speed, then it might be brakes or a wheel bearing causing this noise.
See if the noise stops when you step on the brake pedal. In addition, try to see if you can pin point it down to one side. If you can, you can pull off that side tire and have a look at the brakes and wheel bearing.
i can see the discs through the wheels- i dont remember if i had them done recently, but the pads look thick and unmarked. can the disc be good, but the calipers or something may be out of ajustment and are rubbing them? it does not sound like a disc brake scrape sound though. also, what does a bad wheel bearing look like and home much should it cost to have them repacked? thanks!
Well, a wheel bearing can go bad many different ways. It can be loose, it can make noises, it can lock you...etc. If its the wheel bearing going bad, the price will all depend on where you go to to get it replaced. SOme shops are at 70 bucks an hour, some are at 100 bucks an hour. SOme use more expensive parts... other use less expense parts.