Very simple, took me about 30 mins to fit and route the cable to the usb C port under my seat. bit of a warning, you may want topurchase this adapter https://tinyurl.com/5ckksebn the quad lock cable while long enough is a USB C to USB 3.0 Male. I connected that amazon cable and used water proof tape to seal it fromthe elements.Nice that is going to be my setup as well. How was the install? Did you need to remove the nut or does it have a plastic cover or something?
The stem cap that comes with the CBR650R is just a plastic cover, its fairly tight but an adjustable pliers and a rag (so not to mark the plastics) should do the trick.