All my wiring is now under electrical tape and tie wraps and tucked away nicely, so in lieu of taking everything apart for pictures, which I should have taken while I was doing it, I’ll describe what I did in detail. Very simple mod and could save your butt.
If someone definitely needs to see pics, I’ll take them.
There are others available, including making your own, but this one is the least expensive and it works fine. I placed it under the driver’s seat because it can be too loud if placed elsewhere.
My description assumes you’re standing on the left side of the bike.
After removing the seats, just left of the battery and under the left rear edge of the gas tank, there is a black 12P plug called the Rear Sub Harness in the wiring diagram. Unplug it by pressing down on the top tab while pulling towards the rear.
Strip back a couple of inches of the black insulation wrap to expose the colored wires. You can use the vampire connectors that come with the beeper kit, but they suck. I prefer Posi-Taps as shown in the pic.
Splice one red wire from the beeper harness to an orange wire for the left turn signal and the other to the light blue wire for the right turn signal. If you don’t want the brake to silence the beeper when applied, splice the black to any green wire in the harness.
If you do want the brake silence option, splice the black from the beeper harness to the green with yellow stripe which is for the brake light.
Plug the Rear Sub Harness back in and test the turn signals, front and rear, to ensure they work and you didn’t screw something up. Apply the brakes and the beeping should stop.
If the beeping sounds loudly when one turn signal is on and not as loud when you switch to the opposite side, disconnect the quieter one and find another wire of the same color to tap in to until the volume is equal.