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Wiring Diagram or Install Manual for QX3921UA Stereo NAV Unit

Has anyone been able to find a wiring diagram or install manual for the factory QX3921UA Stereo NAV unit? I'm looking to install an updated system and it would be nice to know about all of the existing plugs. I have a 2013 Limited with a Sync system. Thanks
- silverbackit
- Thread
- Feb 9, 2026
- Replies: 1
- Forum: 3rd Gen Ford Expedition Audio & Electronics

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