I had the speedometer cluster fail on my 2003 X. Easily changed out the unit with a refurbished unit, but the mileage stays with the unit. Vehicle has about 130K miles, but new odometer reads 97K. I want to sell the vehicle with the correct mileage, but having trouble finding someone to change it. The dealership wouldn't do it, even though I am looking to add mileage (not illegally roll it back). Can this be done with some sort of ODB tool or other device. Any advice appreciated.