adapters

I was considering ordering the t-Rex spool adapters for a rear stand. I was curious as to which stand would work best with this. I was gonna order them at the same time

Hi guys, Which wire on the bike is the License-plate-light wire? I'm planning to install a fender eliminator and I have gotten wire adapters for the turn signals. I don't know what I need for the plate light. I'd like to not ruin my stock fender wiring in case I ever wanna go bak to it. TIA