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Picture #1: That should be the harness that runs under the passenger seat. It will be removed and replaced with a conversion harness. Picture #2: Upfitter Power Wiring from the AUX Battery - Cap All Wires as it will be unused. Picture #3: Upfitter Harness - Cap All Wires as it will be unused. Picture #4: You will need to source the pigtail for the lower middle plug as it's the connector for the 110V outlet. The conversion harness will have a connector for the large plug. Conversion Harness Picture #5: The 12v plug will connect to the existing one on the console. The orange wire is carrying 110V and it will need to be extended/converted to the pigtail above. If you want the USB ports to work for Carplay/Android Auto you will need to order a couple of proprietary cables from GM. Check out GM Upfitter for all of the wiring diagrams and vehicle specific information.