You take the Positive from the left VC and connect it to the Negative on the right VC. Then the Positive on the right VC goes to the Positive on the inside of the speaker box and the Negative from the left VC goes to the Negative on the inside of the speaker box. IF your amp is a mono block, you then run the Positive from the amp to the Positive on the outside of the right speaker box and the Negative from the amp to the Negative on the outside of the left speaker box. Then run a wire from the Negative on the right box to the Positive on the left box. Thats how Pioneer Customer Service instructed me to do mine.