I Have a 12 inch kicker L7 4ohm dual voice I .found at my mother's over the holidays from my younger years...it was disconnected so I wired it back up parallel then I add the power source to the non dotted postive and negative and got nothing .. I tried again accidently hooking it up to both positives and got movement from the woofer ? Any idea what's going on ...? Sorry guys Iv been out the game for a while lol