On TBW, an easy way to avoid the problem is to extend the wires so that the small green plug is not in the handlebars any more. When I did mine, all connections were inside the fairing.
I used bricklayers rope. I tied a nut to the end and dropped it through the bars. Then with the wiring staggered, and crimped with thin, non insulated buttsplices I bought at Radio shock and all connections shrink wrapped, I lubed the crap out of the wires with hand lotion and then took my time.
That first bent is gonna kill ya. My bars are all curved bends so mine went right in.
If the wires survive the insall and you check he wires to ensure there is no torn insulation and shorting out to ground, then you should never have a problem.