If you want to make your own split out connector to plug into the light assembly's connector, here are the parts your will need.
Molex 34791-0081, Mouser #: 538-34791-0081
Automotive Connectors 8P 1R MINI50 RECPT UNSEALED GRAY
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On my 2023 Maverick the Power Socket (12V) and the USB sockets shut off automatically, but it's a long 4 minutes after you shut off the vehicle. So you might want to re-check?