Thread: Molex and Simple + and - question

I bought a cold cathode light controller, of course, its not meant for use in the computer, but in my car. I have the basic four knob controller. let me get to the point.

I have a molex connection in the back, and I want to make it usable in the car. The wires are Red-Black-Black-Yellow. I assumed the Red and Yellow were pos, so I wired them to the positive wire I have going to my battery. I took both black wires and ran them to the neg. I installed a rocker on-off switch so its not always on. Now when I turn it on, the knobs' leds light up, but when I turn on the cold cathodes, they dont turn on. I'm wondering if I have a crappy unit, or my wiring was crappy. Any help is appricated.

(Incase you care what I'm doing with it)
I'm putting in three of these units in my jeep. I have one to control the front 4 blue neons under the front and back seats. I have one to control the red neons in the same places, and one to control the lights around my subwoofer. These 5.25" bays fit really nicely into my glove box for a conceled, factory apperance, instead of having a rocker switch in the open.