Wire factory grommets are not available, install grommets yourself. Connect a short ground wire from the GT-BassPro12's ground terminal to the nearest bare metal surface on the vehicle. For a good connection, use sandpaper to clear the paint from the metal surface and use a screw with...
Control Phase switch: This switch will reverse the phase of the GT-BassPro12's output with respect to its input. When you install the GT-BassPro12 with an existing factory or aftermarket system, changing the Phase switch setting to reverse the subwoofer's phase may produce a discernable ,_:~-58[@] ~-~?®j®...
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