The 2009 Nissan Frontier audio system consists of the following components:
• Audio unit
• Rod antenna
• Front door speakers
• Front tweeters
• Rear door speakers
When the audio system is on, radio signals are received by the rod antenna. The audio unit then sends audio signals to the front door speakers, front tweeters and rear door speakers. Below schematic shows the 2009 Nissan Frontier Audio System Wiring Diagram.

2009 nissan frontier audio system wiring diagram

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