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Originally Posted by tonycarreon
i have to admit, i would get one. the less crud and dangling wires i have cluttering up the car the better in my opinion. plus i haven't figured out how to plug in an iphone charger, nav plug and radar detector into a single lighter socket yet...
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The GPS units have internal batteries that are good for several hours. I usually don't need to plug mine into the car at all.
There's also options like this adapter that charges through USB and multiple cigarette adapters:
http://www.my-batteries.net/others/3-ways-car-cigarette-lighter-charger-adapter-socket-with-usb-port.htm
And leaves you with a plug to spare.