DaveT
While your looking at your harnesses, keep an eye open for any and all sharp metal edges that will be close to the wires.
I found several places on my G5 including the side cover that covers the fuses etc. (Hard to believe these sidecovers are metal stampings like in the olden days instead of cheap crappy plastic like the new bikes have! )
Also, in some places there may be a metal tab that is holding the wiring in place.
I used short lengths of rubber or vinyl tubing, slit from end to end to tuck the wiring inside wherever these sharp edges/wiring were close to each other.
Now, the sharp metal edges will have to gnaw thru the tubing before it can get to the wires.