“Does this get hardwired into the car? If so can Best Buy do it for me. What is the purpose of the internal battery?”

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• No hard wiring needed. Plugs into the lighter socket.

  Answered by Bill 5 years ago

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• No it doesn’t plugs into your cigarette lighter or 12 volt power

  Answered by Steve 6 years ago

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• You can but you don’t have to. I guess the internal battery is if the power supply in the vehicle blow a fuse you don’t lose the memory

  Answered by Anonymous 6 years ago

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