Assuming that you have a 4 Ohm Dual Voice Coil (DVC) sub, you should wire it in parallel for more output. Solid red connects to red with white dot, and goes from solid red to amp positive (+). Solid black connects to black with white dot, and goes from white dot to amp negative (-). For a good diagram, go to this link: http://kicker.com/dvc_wiring
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Assuming that you have a 4 Ohm Dual Voice Coil (DVC) sub, you should wire it in parallel for more output. Solid red connects to red with white dot, and goes from solid red to amp positive (+). Solid black connects to black with white dot, and goes from white dot to amp negative (-). For a good diagram, go to this link: http://kicker.com/dvc_wiring