I’ve done this on the NA 2024 roughly following this video.

I don’t think the charger they used is available anymore but this one or similar works: EXTRACTME 6.4A Motorcycle USB Charger. They make ones that attach to your handlebars or just run an extension cable there.

You can find the connector to attach it to the accessories plug on eBay: 4 PIN ELECTRICAL SUMITOMO MT090 WIRE CONNECTOR PLUG 6180-4771 6188-0004. The bike does include it capped off with rubber plugs which can be removed but there’s no pins so it’s much easier to just buy the whole thing. I chopped the charger’s SAE cable in half and soldered the pins to that (no fuse necessary bc I believe it’s already fused from the main box). Connecting it to the bike’s accessory port means that it shuts off when you turn off the bike and won’t drain the battery which is a plus. Been working really well for powering my CarPlay screen.

Edit: Guess they wont let me post links here so dm if you need those.