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Scosche NN03RB

Reverse Wire Harness to Connect an Aftermarket Stereo Receiver to Select 1995-Up Nissan Vehicles

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When replacing your factory radio with an after-market car stereo, the Scosche NN03RB wire harness is a must for a quick and clean installation. It eliminates cutting your OE radio plug. After connecting it, your install is simple as the wires will color-match and easily connect to the after-market stereo. Without the Scosche NN03RB, you would have to cut the OE radio plug and manually test each wire to connect to your after-market receiver. In addition, because you do not have to cut your OE radio plug off, the NN03RB allows you to reinstall your factory receiver if necessary. A great example is if you sold your car, but wanted to keep your after-market radio and re-install your factory stereo receiver. We also recommend the Scosche BOBAZT for a quick connection that is sure to last.

Product Features:

  • Reverse harness is used when installing an aftermarket stereo
  • Connects the aftermarket stereo harness to the vehicles factory harness
  • Designed specifically to fit the compatible vehicles
  • Plugs into the factory harness without cutting any wires
  • Standard color coded wires provide a consistent and simplified installation
  • Made from OEM quality materials
  • Compatible with Select 1995-up Nissan Vehicles


  • Yellow – 12V Constant
  • Red – 12V Accessory
  • Black - Ground
  • Black with White Stripe - Amp Ground
  • Blue - Power Antenna
  • Blue with White Stripe - Amp Turn-On
  • Orange – Dash Light Dimmer/Illumination
  • Green – Left Rear Speaker (+)
  • Green with Black Stripe Left Rear Speaker (-)
  • White – Left Front Speaker (+)
  • White with Black Stripe – Left Front Speaker (-)
  • Purple – Right Rear Speaker (+)
  • Purple with Black Stripe – Right Rear Speaker (-)
  • Gray – Right Front Speaker (+)
  • Gray with Black Stripe – Right Front Speaker (-)

Harness Features

Main Harness Function
Different installations on different vehicles require different harnesses. This type is what the harness is considered. Each wiring harness we sell serves a purpose such as installing an aftermarket car stereo, integrating an aftermarket amplifier with your factory car stereo, connecting Bluetooth to your factory car stereo, and more.
Replace Original Vehicle Stereo Wiring Plug (Male Side)
Compatible Vehicle Make
Allows you to view only items that are compatible with your vehicle's make. Does not guarantee that it will work with your vehicle year or model.
Compatible Vehicle Make and Model
The model of vehicle that this vehicle specific product is designed for. Please keep in mind that engine variations can affect the compatibility of the products.
Nissan Altima
Nissan Frontier
Nissan Maxima
Nissan Sentra
Nissan Titan
Nissan Versa

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

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Average Attribution Rating


Houston, TX

Works great

December 5, 2013

This was exactly what I searched dozens of websites to find, although the description is misleading. This is actually the harness that originally comes with the factory radio of newer Nissans; it's not an adaptor to put the factory radio back in after installing an after-market radio. Which is exactly what I needed, but it's not what the description said.

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Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: Scosche NN03RB