Well, after much testing of wires, and finally a call to Clearwater Lights, turns out for the FJ-09's LED headlights, a 12V trigger wire solution is not currently available. For those not familiar with the Clearwater lights, they are dimmable which allows you to run with the lights at less than full bright, but with a relay, when you trigger the horn and/or high beam, they will go full bright. I use my Darlas primarily for daytime conspicuity with amber lens. The horn trigger still works so when I hit the horn I get full bright on the Darlas but no luck finding a high beam trigger for now.
Clearwater is aware of the problem and is working on a solution. In the meantime the best alternative solution is to run Clearwater's white high beam trigger wire to a 12v source via a switch, which is what I ended up doing. This manually trips the relay and you get full bright. If someone has a better solution, please post!
For those with other brand lights and simply looking for a 12v lead that leaves auxiliary lights off on low-beam and on with high-beam then yes, you can use one of the yellow wires coming from the headlight control unit (mounted directly under the nose for those wondering where it is), but this is simply a power source not a high beam trigger for the Clearwater Darla install. HTH