“My blazer first have a cig lighter port, dues this device require one to work? Thanks”

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• 12 volt round plug or buy the hardwire kit. Best Buy installation is free for total tech members.

  Answered by Bako 3 years ago

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• Yes it does but- the one it comes with have a USB port built into the cig adapter for an extra power / update source.

  Answered by ElvisDouglas 3 years ago

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