1. NEVER PERFORM LIVE WIRING: Always disconnect the vehicle's negative battery terminal before plugging or unplugging any wiring harnesses. Hot-plugging can damage the CANbus decoder or factory ECU.
2. MUST RETAIN FACTORY CLIMATE CONTROL BOX: Do NOT attempt to start or turn on the vehicle if the original OEM climate control module (the white or black plastic box mounted below/behind the radio) is disconnected. Starting the engine without this module plugged in will cause ignition failure, prevent the vehicle from starting, and trigger persistent engine fault codes (DTCs).
1. Identify Your Factory System Configuration
Nissan Armada and Infiniti QX56 models come with three distinct factory radio and climate control layouts. Before installing your Roadnavier vertical Android screen, inspect the rear ports of your OEM head unit and climate box to match your vehicle with the correct wiring scheme below:
2. Step-by-Step Wiring Harness Schematics
Scheme A: Nissan Armada High-Trim (Factory Navigation / Bose)
Use this scheme if your Armada features a factory color display and multi-disc CD changer/Bose sound system. You must plug the vertical screen harness into both the main head unit and the top display harness.
- Connectors 1, 2, 4, 5: Plug into corresponding numbered ports on the OEM Head Unit.
- Connector 3: Plugs into Port 3 on the OEM Upper Display.
- Connector 6: AUX / Camera video signal feed into Port 6.
- White Climate Box: Must be reinstalled and plugged into the factory harness below the head unit.
Scheme B: Nissan Armada Low-Trim (Standard Non-Nav System)
Designed for standard Armada models without factory navigation. Connections plug directly into the back of the OEM radio receiver.
- Connectors 1, 2, 3, 4: Plug into corresponding matching slots on the low-trim radio chassis.
- Connector 5: Main power / CANbus communication loop plug.
Scheme C: Infiniti QX56 Dedicated Harness
Infiniti QX56 models require a dedicated wiring harness to interface with the original black climate control module and luxury Bose audio network.
- Connectors 1, 2, 3: Plug into matching ports on the main QX56 receiver unit.
- Connector 4: Interface plug for upper dash info/climate integration.
- Black Climate Box: Must remain securely attached and plugged into original factory plugs. DO NOT REMOVE.
Roadnavier Vertical Screen Technical Specifications
Frequently Asked Questions & Troubleshooting
Q: Why won't my engine start or why is the check engine light on after installing the vertical screen?
This happens when the original white (Armada) or black (QX56) climate control box was left unplugged. The vehicle's immobilizer and CANbus network route through this HVAC module. Reconnect the OEM climate box to its factory plug, clear fault codes, and the vehicle will start normally.
Q: Will this vertical screen retain my factory Bose sound system and steering wheel controls?
Yes. The Roadnavier harness kit includes a pre-programmed CANbus decoder box that decodes steering wheel commands and feeds audio signals into the factory Bose amplifier system.
Q: Can I retain my OEM backup camera or add a 360° panoramic camera system?
Your factory backup camera will trigger automatically on the 12.1-inch screen when shifting into reverse. Furthermore, Roadnavier vertical screens feature built-in 360° surround-view software if you choose to upgrade to an AHD 1080P camera kit.
Upgrade Your Nissan Armada / Infiniti QX56 Cockpit
Transform your vehicle interior with a 12.1" HD Vertical Touchscreen featuring Wireless CarPlay, Android Auto, and Full OEM Climate Integration.
Explore Roadnavier Plug & Play Android UpgradesNeed 1-on-1 technical help with your wiring harness? Contact our engineers: