OK, OK . . .
The PDM60 is tucked in down and behind the battery, under the rubber strap and the keyless is to its right.
Blue wire on left runs from the horn button to the Stebel, which under the side cover is still loud as heck!
I believe the blue wire actually runs to the PDM60 Ground Trigger (not directly to the Stebel)
(that wire could have been much smaller - 20ga would be plenty!)
You really need to do clean up all that wiring under the seat!
Removed mine finally today with the plan to fit the Suzuki rectifier which I have had for some time. As an anecdote, I do believe the evap system on these bikes is little more than a permanent vacuum leak, for the bike idles much smoother now. Rollover valve preserved, and burp hose pointing toward terra firma.