“nuvi 3790 LMT Will this charger restore the traffic function to the nuvi 3790 LMT or would I have to purchase a GTM cable?”

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• This is our standard vehicle power cable, which will only supply power to the Garmin--not traffic. You would need to purchase a traffic receiver to receive traffic information. Thank you! (KS)

  Answered by GarminProductExpert 2 years ago

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• Works just like the original cable with the traffic capabilities.

  Answered by Patrickpiteo 10 years ago

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