English | 27Selectable IlluminationSelecting the button illumination color as greenor red.Display Setting"Button Red" The illumination color is red."Button Green" The illumination color is green.DimmerDimming this unit’s display automatically whenthe vehicle light switch is turned ON.Display Setting"Dimmer ON" The display dims."Dimmer OFF" The display doesn’t dim.Function of the KDC-X679System Q SettingSetting whether the display indicates the SystemQ factors (Bass center frequency, Bass Q factor,Bass extend, Middle center frequency, MiddleQ factor, and Treble center frequency) in Audiocontrol.Display Setting"System Q ON" The System Q factors are displayed."System Q OFF" The System Q factors aren’t displayed.Function of the KDC-MP625/KDC-MP6025In Standby modeSwitching preoutSwitching the preout between the rear andsubwoofer. (In subwoofer it outputs withouteffect from the fader control.)Display Setting"SWPRE Rear" Rear preout."SWPRE Sub-W" Subwoofer preout.In Standby modeBuilt-in Amp Mute SettingToggles ON or OFF the mute control on the built-in amplifier.Turning ON this control enhances the preoutquality.Display Setting"AMP Mute OFF" The built-in amplifier activates."AMP Mute ON" The built-in amplifier deactivates.Function of the KDC-X679/KDC-MP6025In SIRIUS Tuner, External disc, or Auxiliary inputsourceDual Zone SystemMakes the sound different for the front channeland rear channel.Display Setting"Zone 2 OFF" The front and rear are the same source sound."Zone 2 ON" The front and rear are the different source sound.• When the Dual Zone System is on, there is only soundeffect including Audio control for internal source.• When you set the Dual zone system to ON while thesubwoofer preout is switched ON, the sound of thesubwoofer preout isn’t output.• When the source is selected to VZ-7000P/N (optionalaccessory), the VZ-7000P/N’s sound is not output if theDual Zone System is turned ON.Function of the KDC-X679/KDC-MP6025When the Dual Zone System is OFFDual Zone System SettingSetting the Front channel and Rear channelsound in the Dual Zone System.Display Setting"Zone 2 Rear" The front is this unit’s internal source, and the rearis selected source sound."Zone 2 Front" The rear is this unit’s internal source, and the frontis selected source sound.