After nearly getting sideswiped by a driver who thought an arm signal for a left turn was waving them by to pass, I decided to add turn signals to my ATV. I did a bit of reading. Federal law requires rear turn signals for a motorcycle to have at least 22 square centimeters of illuminated area per side. It takes over 8 of those ubiquitous little 3/4" LED lights to meet that standard. I decided to buy individual parts and make my own kit. 2 maintaining and one momentary rubber booted subminiature switches (one for a horn while I was at it), an electronic flasher from Ebay, two turn signals from Amazon, and a piece of 1/4" black Starboard (marine grad HDPE) to fashion mounting brackets for the turn signals. I also got some 4 conductor cable to run down from the handlebar to the front opening and some two conductor cable to run back to the rear lights.
I carefully fitted the switches to the existing left hand switch module. They just fit. I had to remove a little post in the bottom to make some clearance and carefully measure and drilled the holes. If I screwed up here, I'm buying a new switch assembly for real money.
On my 2022 the wiring for the front turn signals and the dash indicators did not stop at the first connector. It went through and must have stopped somewhere else in the harness. This let me tap in on the harness side of the connector so if I ever had to replace the dash or a light assembly, I won't have to do any resoldering.
Push on the left button, get left flashing, push it again for off. Same on the right. Push both and you get 4 way flashers.
Video of rear lights flashing.
https://drive.google.com/file/d/1sQR9N17wRaANaUAr9kJIpiIVW9S2Y3Sm/view?usp=sharing