Continued from front: Connect the speaker lead to the sub woofer (Connect the red lead to the connector, the black to the ** connector). Secure the sub woofer to the enclosure using the supplied #8 x 1" woofer screws. Make sure the screws are driven straight and are tight to insure an airtight seal around the woofer. Run the speaker wire from the amplifier to the enclosure mounting location. Fold down the rear seat. The enclosure is designed to perform best when the rear seat is in the DOWN position.