Even Brake and the 9700 are powered through the towed vehicle's 12-volt outlet, with the ignition key turned to the "tow" position. If your vehicle has no power to the outlet with the key in this position, use this kit.
The 12-volt outlet kit can also be used to bypass a corroded or otherwise damaged 12-volt outlet socket, or to replace an outlet with insufficient amperage.

9332 12-Volt Outlet Kit
(for Even Brake and the 9700)