Magellan RoadMate 800 Reference Manual page 20

Chapter 3: Vehicle Installation
Then, route the cable along the back of the cradle and insert it into the wire catcher.
Plug the power adapter into your vehicle's cigarette lighter or 12-volt receptacle.
Rotate the antenna upward (see page 13 for correct antenna position).
Installation is complete, and you are ready to turn the Magellan RoadMate on and go.
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