Today I added the lower rear fender brake light update and while I had it appart I found the wiring for the brake light and added a brake light flasher. I was unable to get the help I needed by searching the forum so wanted to pass on my info in case others wanted to add a brake light flasher. We've had two fatal crashes here in central Florida when cars ran into a stopped motorcycle. I think adding a flasher is a wise move. The brake light wire is the red and yellow one. I traced the wiring back to the left side cover and soldered the flasher in line there. Plenty of room. Hope this helps someone.