Magellan RoadMate 800 Reference Manual page 21

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