Could someone get me the correct part number for the Trimble >2010 JD9770 steering wheel position sensor adapter cable? Also, what has to be done in the combine to eliminate the "steering position sensor" codes from coming up? These are SSU.001 codes: 1807.12, 1807.18, 523824.18. Our Deere AMS specialist suggested that we try unplugging the AutoTrac controller under the cab--does this work?