First, I finished the install of my PC-8. Man, it hurt to cut up the plastic on that panel to make it fit; luckily it was like 95 degrees today so the plastic was nice and soft. I not only had to chop out a vertical brace, I had to lop off the tab that the Cruise and Stop Lamp fuses mount to. Being hot, it also made wrangling the PC-8 harness a lot easier. The worst part was that the "semi-captive" nut on the positive post of the battery just would not cooperate. Took me more than 20 damn minutes to get that terminal bolt back in, dropping the nut at least 5 times including once into the skidplate. I mounted the fusebox using Double Lock, and I wired up the new GPS cradle. I bought a splitter from Eastern Beaver for the aux-light plug, so the relay for the PC-8 is wired, and there's still a proper connector for an aux light if I ever get that sorted, and I re-used the dummy connector from the factory plug on the unused branch of the splitter.
I also got the Doubletake mirrors swapped in, and mounted a Ram ball to one side of the GPS bar.
No pictures because I was frikken hot and tired (did I mention it was 95 today?), and had no patience to drag out the install any further by stopping to take pictures.
However, the pic Fpalbrecht posted in this thread:
https://yamahasupertenere.com/index.php?threads/wiring-harness-source-for-mounting-an-aux-lightbar.30241/#post-446388
is exactly how I did my PC-8, except that I ran the main power across the top of the wiring tangle, and down behind the battery leads, so the relay and fuse boxes are tucked up with all the other relays at the top of the panel.
The only piece I have left to mount is the factory headlight guard I picked up. By the time I had finished the wiring fight, I was frustrated, tired, slightly dehydrated, and feeling imminent heatstroke. I was starting to randomly fumble and drop bits of the Doubletakes and the Ram ball components, so I put off the guard until next week. I'll mount it up next Thursday evening, so it'll be ready for the Hampster that weekend.