I have seen constant power to accessory fuses before in automotive applications. I have even seen where this power is cut from 12 to 6 volts with the key in the off position to power dome lights and such, so I wasn’t sure how the accessory fuse worked on motorcycles.
As far as where I connected the resistor mod, I connected it to the accessory fuse as suggested in the write up; this is how I found the constant power on this fuse. I did not permanently connect the resistor as I needed to see which resistor would work. Since my accessory fuse does not seem to be switched, maybe I could try another fuse.