This is a mount I designed for my MDC caravan which allows you to mount two USB-C connectors under the factory light fitting. Originally I ordered USB-C connectors with only the power wires. This works but only delivers a maximum of 500mA. I have ordered the 4 wire connectors as I believe a 200 ohm resistor needs to be connected across the data lines so the connected device can draw 1500mA.

Power supply
https://www.aliexpress.com/item/32960698360.html?spm=a2g0o.order_list.order_list_main.29.58111802Uud2Bv

USB Connector
https://www.aliexpress.com/item/1005005312428141.html?spm=a2g0o.order_list.order_list_main.5.58111802Uud2Bv