These products have been designed to deliver great bass performance from a compact, easily installed enclosure. To get the best performance from your enclosure, we strongly recommend that installation be entrusted to a qualified professional. Although these instructions explain how to install your product in a general sense, they do not show specific installation methods that may be required for your particular vehicle. If you do not have the necessary tools or experience, do not attempt the installation yourself. Instead, please ask your authorized JBL car audio dealer about professional installation. In order that we may better serve you should you require warranty service, please retain your original sales receipt and serial number. WARNING: Playing loud music in an automobile can permanently damage your hearing as well as hinder your ability to hear traffic. We recommend listening at low levels while driving. JBL accepts no liability for hearing loss, bodily injury or property damage resulting from use or misuse of this product. INSTALLATION TIPS · Always wear protective eyewear when using tools. · Turn off all audio components and other electrical devices before you start. Disconnect the (­) negative lead from your vehicle's battery. · Check clearances on both sides of a planned mounting surface. Be sure that screws or wires will not puncture brake lines, fuel lines or wiring harnesses, and that wire routing will not interfere with the safe operation of the vehicle. · When making electrical connections, make sure they are secure and properly insulated...