Go to the >DiMarzio< website and drill down to the wiring diagrams for one of the humbucking pickups. Unless you have DiMarzio pickups, the colours of the wires may be different, or may not be used in the same way. But you can see how the connections should be made, and which part of the pickup should be wired to which part of the controls.

And while you're at it, visit >GuitarNuts< to see how the controls should be connected in order to keep your rig quiet. Hint: That means [u]not[/u] using the back of the control pots as a ground connection!