— 29 —Make sure that the unit is installed securely in place. If the unit isunstable, it may malfunction (eg, the sound may skip).Bend the tabs of themounting sleevewith a screwdriver orsimilar utensil andattach it in place.Metal mountingstrap(commerciallyavailable)Self-tappingscrew(commerciallyavailable)Firewall or metal support■ InstallationScrew (M4X8)(commerciallyavailable)Installation■ Screwing the Faceplate on the UnitIf you want to fasten the faceplate to the main unit so that itdoes not fall off.1 Refer to the section andthen remove the hard rubber frame.2 Drop open the faceplate by pressing the Release button. Never insert the screws in any other screw hole than the one specified.If you screw them in another hole, it will contact and may causedamage to the mechanical parts inside the unit.4 Tighten the screw (ø2 × 4 mm) (Accessory 5) in the holeshown on the diagram.Accessory65 Tighten the screws (ø2 × 6 mm) (Accessory 6) in the holesshown on the diagram.Accessory53 Tighten the screw (ø2.6 × 12 mm) (Accessory 4) in the holeshown on the diagram.Accessory4