20 color LED light kit add-on

I just bought a silver 09 Cube SL that has the 20 color LED light kit on it and would really like to have the lights in the rear seating area too. I know you can buy the kit from Nissan as a do-it-yourself accessory that includes the LEDS and the adjust knob. Does anyone know how its wired or if I can add a second kit in my cube so I can get more neon lights in my car? wouldnt it be cool to have a 2nd kit for the back seat passengers with their own knob so they can choose their own color?