User manual PIONEER KPH-4120

[. . . ] Otherwise you may get an electric shock. Also, do not touch the amplifier when it is wet. For traffic safety and to maintain safe driving conditions, keep the volume low enough so that you can still hear normal traffic sound. Check the connections of the power supply and speakers if the fuse of the separately sold battery wire or the amplifier fuse blows. [. . . ] When using with an RCA equipped car stereo (standard output of 500 mV), set to the NORMAL position. When using with an RCA equipped Pioneer car stereo with max. Output of 4 V or more, adjust level to match the car stereo output level. If you hear too much noise when using the speaker input terminals, turn the gain control counterclockwise. If you hear a beat while listening to an MW/LW broadcast with your car stereo, change the BFC switch using a small standard tip screwdriver. To protect the wiring, wrap adhesive tape around it where they lie against metal parts. Do not route wires where they will get hot, for example where the heater will blow over them. If the insulation heats up, it may become damaged, resulting in a short-circuit through the vehicle body. Make sure that wires will not interfere with moving parts of the vehicle, such as the gearshift, handbrake or seat sliding mechanism. Otherwise the protection circuit may fail to work when it should. Never feed power to other equipment by cutting the insulation of the power supply wire to tap from the wire. Failure to securely fasten the battery wire to the terminal using the terminal screws could cause the terminal area to overheat and could result in damage and injury including minor burns. Expose the end of the speaker wires using nippers or a cutter by about 10 mm and twist. Do not connect both the RCA input and the speaker input at the same time. Fix the speaker wires securely with the terminal screws. Connect the speaker leads to suit the mode according to the figures shown below. Do not connect both the RCA input and the speaker input at the same time. Do not install in: --Places where it could injure the driver or passengers if the vehicle stops suddenly. --Places where it may interfere with the driver, such as on the floor in front of the driver's seat. Make sure that wires are not caught in the sliding mechanism of the seats, resulting in a short-circuit. Confirm that no parts are behind the panel when drilling a hole for installation of the amplifier. Protect all cables and important equipment such as fuel lines, brake lines and electrical wiring from damage. [. . . ] To ensure proper heat dissipation of the amplifier, be sure of the following during installation. --Allow adequate space above the amplifier for proper ventilation. --Do not cover the amplifier with a floor mat or carpet. DO NOT allow amplifier to come into contact with liquids due to, for example, the location where the amplifier is installed. [. . . ]