540i 6 speed 2001. I noted lately a squeaky noise from what sounds like my front end for the first 10-15 miles when first driving in the morning. Sounds like a hamster on his treadmill....squeak....squeak.... High pitched and without vibration or grinding noise. Not related to engine RPM's, clutch in or out. Squeak is related to speed. Hard to hear below 10 mph or above 40 mph. Then goes away, seemingly after whatever it is warms up. Only to reoccur after cooling off. Recently took a 700 mile round trip on interstate wo any noise at highway speeds or problems could this be an early front wheel bearing problem? Any other thoughts? thanks!!