sure is. Just splice or connect the aux wire to the existing brake wire.
That's how I connected the LED brake light on the Kappa top box.
If your LED light is just a supplemental light, there's no need of using diodes or anything like that. Depending on your LED light setup, you might need to connect the + to + and - to - , otherwise it wouldn't work. Some LED light setups have some more electronics involved inside, and It wouldn't matter if you mix the wires, it would still work. But, maybe that's too much info already!
A forum community dedicated to all Suzuki Strom owners and enthusiasts. Come join the discussion about performance, modifications, troubleshooting, purchasing, reviews, accessories, maintenance, and more!