UPDATE: Found this post on thumpertalk. It tells you which wires on the DRC MotoEdge brake light to connect to which DRZ wires.

The brake light has a Red, a Yellow and a Black wire. The DRZ has (White with Black Stripe), (Black with White Stripe) and (Grey).

It says…
Tail Light:
Red to White/Black Stripe
Yellow to Gray
Black to Black/White Stripe

Tweet me if you have any questions. @skadamo
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I purchased a DRC LED brake light from http://sicassracing.com. I am having some issues wiring it up. My bike is a 2003 DRZ 400s.

The picture below shows the plug for the rear brake/tail light. If I move the black electrode to the wire on the left I would think I would see the needle move if I applied the front brake. That does not happen. Am I not understanding how the wires are set up?