only option would be to get a splitter cable for the front light, if this one is at 12V in the system. Get the Watts on this port maxxed out by a dealer and use one part of this splitter to power the frontligth, the second to power a 12v outdoor socket (motor bike/atv socket) so you could use a car plug usb charging device. I've seen these mods on a few bikes.
basicly this set:
View attachment 203502
this used for a cargo bike, for the front light and the light in the headbadge on the front of the box.
with JST connectors so that is easier to deal with.
View attachment 203503
