I completed the installation and we're heading out tomorrow, Saturday throught Tuesday........and will post back. I'll also take some pics because it will make the routing much easier.
I will stay that I did go out and get:
(4) 10' spools of 10g wire, two black and two red
(1) 1/2" 5-foot black split plastic coil cover
(1) 3/8" 5-foot black split plastic coil cover
(1) 1/2" ID rubber gromet
(10) Pack of heat-shrink tubing
Some highlights:
1)I ended up extending each harness ~aprox 8' (yes EIGHT FEET). That got me to my "exit areas" with minimal slack.
2) I cut the TM harness about 8-10inches AFTER the fuse holder(s), then ADDED the full 10' additional RED(+) and NEGATIVE(-) wire. (I did NOT put the remaining TM wire/plugs on yet
3) Then temp routed the harness up along the left side frame backbone, then came out under the center area where you remove the "V" plastic painted cover in-front of the seat and. I used the open slot in the open foam "wire holder"which is right-of-center, then curved back to the left. (So basically the harness is left-bound on the bike.
4) Shortly after that, I divided the harness. DRIVER will ultimately come out just in front of the saddle bag forward most "point" and be stored when not in use in the same area as the ECU connection. PASSENGER will be routed further back, and come out via GROMET just behind area of heater switches on "upward" painted area. (So yes you will drill one hole). The cool thing on that one is, you can push the TM cable back into the gromet and it will coil itself around/under your seat area when not in use, and the plug will snug itself into the rubber gromet, and you wont see it.
5) Any spliced wires were done "head on" then twisted to keep the diameter minimal. Then soldered. Then heatshrink wrapped twice. (So remember to slide the
heatshrink tubng on the wires themselves BEFORE you connect anything.
............... but I will detail this more with pics.
Important thing was I tried it all 1st, both lines before final assembly and THEY WORKED.
ONE OTHER *IMPORTANT* ITEM......... before you cut the wires, mark and match them. Because they are totally black you can not see which are + or -. I believe that the wire with three every-so-small ribs on it is the negative. (IT WAS A OOPS MOMENT FOR ME thinking........hmm.........guess I needed to figure that out BEFORE I did the cut, but, i ended up just fine)