Display Dimming
The receiver's vacuum florescent (VF) display has step dimming when the headlamps or parklamps are turned on. The display intensity is controlled by the position of the instrument panel lamp dimmer control.When no voltage is present at the parklamp input to the radio (the parklamps and the headlamps are off), the display will be at 100 percent intensity and cannot be dimmed by the instrument panel lamp dimmer control.