I’ve got a Hamilton unit, but I’ve honestly never used the aux or factory usb A that’s in the center panel next to the shifter. I’m also running my Hamilton through factory Bluetooth instead of using the aux method in one of their various set up methods - this supposedly helps with phone calls with the oem mic and reduces a background echo.
The factory usb is too slow of a charger. I’m also not a fan of having cords everywhere, so I went with a mag bak Qi charger from Off Roam that mounts to the center vents.
Plus if the new USB C’s were pointing up, it’d be a crumb and dust pit…
