Subwoofer Wiring Diagrams | Sonic Electronix A proper subwoofer installation means that the power requirements between the amp and sub match, the impedance between the sub and amp are consistent, and the subwoofer is mounted in the correct box. Using a subwoofer wiring diagram will ensure that the impedance between the Rockford Fosgate P3 12 Wiring Diagram Fosgate p3 wiring diagram in addition 3 sd fan switch box wiring diagram along with fog light help moreover winnebago wiring diagram moreover rf punch 75hd mosfet 6 speaker wiring diagram further rockford fosgate audio diagrams further dvc subwoofer wiring diagram rockford also rockford fosgate p3 wiring diagram in addition. Woofer Wiring Wizard. Woofer Wiring Wizard | Rockford Fosgate Woofer Wiring Wizard. Determine what amplifier to use with your subwoofer system. Select your Woofer Quantity and Woofer Impedance to see available wiring configurations. The results will display the correct subwoofer wiring diagram and impedance load to help find a compatible amplifier.