Hi, I'am looking for any and all information for upgrading the current factory non-navigation head unit to a factory navigation unit in a 2013 Suburban. The plugs don't match up so I would need to make my own plug & play harness or purchase one. I already have the navigation head unit and have a Snap On scanner to program it once installed. Infotainment via Ebay sells the complete set with head unit and all with a plug & play harness to accomplish this but they are unwilling to sell just the harness. https://www.ebay.com/itm/FACTORY-STOCK-OEM-CHEVROLET-GPS-NAVIGATION-RADIO-UPGRADE-CD-HDD-DVD-PLAYER-BOSE/131306773280
https://www.infotainment.com/products/gm-premium-factory-gps-navigation-radio-upgrade?variant=324252773
If I have to make one I will but I would need the wiring diagram from a non-navigation Bose system and a diagram from a navigation unit with Bose as well. Has anyone got experience with this and if so, can you help me out? I'am not looking for aftermarket install. Thank you very much.