Trunk Mount Amplifier (120-1971B) Mounting The Amplifier Faxback Doc. # 18179 Follow these steps to mount the amplifier in the location you chose earlier. 1. Disconnect your vehicle battery's negative (-) cable. 2. Label and Disconnect the amplifier's input and output wires to make mounting more convenient. 3. Using the mounting holes on the amplifier as a guide, mark the locations for the mounting holes. 4. Drill 9/64-inch holes in the marked locations, taking care not to damage anything behind the mounting surface. 5. Attach the amplifier to the mounting surface using the supplied sheet-metal screws and washers. 6. Reconnect the amplifier's wires. 7. Reconnect your vehicle battery's negative (-) cable. (CS 10/10/95)