User manual PIONEER DEH-P4100UB

[. . . ] If the insulation of the wiring melts or gets torn, there is a danger of the wiring short-circuiting to the vehicle body. Don't pass the yellow lead through a hole into the engine compartment to connect to the battery. This will damage the lead insulation and cause a very dangerous short. [. . . ] If you do, the protection circuit may fail to work when it should. Never feed power to other equipment by cutting the insulation of the power supply lead of the unit and tapping into the lead. When replacing fuse, be sure to use only fuse of the rating prescribed on this unit. Since a unique BPTL circuit is employed, never wire so the speaker leads are directly grounded or the left and right speaker leads are common. Please ground this lead separately from the ground of high-current products such as power amps. If you ground the products together and the ground becomes detached, there is a risk of damage to the products or fire. Speakers connected to this unit must be highpower types with minimum rating of 45 W and impedance of 4 to 8 ohms. Connecting speakers with output and/or impedance values other than those noted here may result in the speakers catching fire, emitting smoke, or becoming damaged. When this product's source is switched ON, a control signal is output through the blue/white lead. Consult with your nearest dealer if installation requires the drilling of holes or other modifications of the vehicle. Install the unit where it does not get in the driver's way and cannot injure the passenger if there is a sudden stop, like an emergency stop. The semiconductor laser will be damaged if it overheats, so don't install the unit anywhere hot -- for instance, near a heater outlet. If installation angle exceeds 60° from horizontal, the unit might not give its optimum performance. Installation using the screw holes on the side of the unit 6 Insert the release pin into the hole in the bottom of the frame and pull out to remove the frame. Fastening the unit to the factory radio mounting bracket. Select a position where the screw holes of the bracket and the screw holes of the head unit become aligned (are fitted), and tighten the screws at 2 places on each side. Use either truss screws (5 × 8 mm) or flush surface screws (5 × 9 mm), depending on the shape of the screw holes in the bracket. 9 Insert the release pin into the hole in the bottom of the frame and pull out to remove the frame. [. . . ] Use either truss screws (5 × 8 mm) or flush surface screws (5 × 9 mm), depending on the shape of the screw holes in the bracket. 9 Insert the release pin into the hole in the bottom of the frame and pull out to remove the frame. Insert the supplied extraction keys into the unit, as shown in the figure, until they click into place. [. . . ]