See also:

Media Center 730N/430/430N (RHR/RER/RBZ/RHB) CD/DVD/HDD/NAV — If Equipped
NOTE: The sales code is located on the lower right side of the unit’s faceplate. Refer to your Uconnect™ Multimedia RHR, RER, RBZ or RHB user’s manual for detailed operating instructions. ...

Media Center 130 (Sales Code RES)
NOTE: The radio sales code is located on the lower right side of the radio faceplate. Media Center 130 (RES) ...

Compass Variance
Compass Variance is the difference between Magnetic North and Geographic North. To compensate for the differences, the variance should be set for the zone where the vehicle is driven, per the zone ...