THANK YOUfor purchasing a JBL®Grand Touring®Series subwoofer.Subwoofer installation requires woodworking skills and someexperience in disassembling and reassembling automotiveinteriors. If you lack the tools or necessary skills, have yoursubwoofer installed by an authorized JBL dealer.GRAND TOURING®SERIESGTO1014GTO1014DGTO1214GTO1214DGTO1514GTO1514Dcar audio subwooferowner’s manual