Advent CADNAV2 Quick Start Manual page 14

Settings
Navigation settings continued:
Temperature unit:
Sets for C or F.
Map Update:
Follows the screen indication
for map update.
Rear camera settings:
During reversing, set (ON),
rear view would be display
on screen.Set (OFF), rear
view would not be display,
still display previous UI.
Rear Camera Option:
Selection for OEM Camera or
Aftermarket Camera if any.