My front brake are making this grinding noise. At first it was just the brake shield hitting the rotors. Fix that and now its back. When you put it on jack stand and turn the rotors it still make that noise. As your speed climbs it gets louder. I install the new brembo rotors with new brake pad not too long ago. CAn it be the pad that making that nosie since it haven't been driven for a while. Any ideas? This noise is getting on my nerves.