Radio/Stereo: Description and Operation

With the Ignition Switch in ACC or RUN, voltate is applied through Fuse 11 to operate the Radio.

Fuse 1 applies voltage to the Radio, at all times, to power the memory-related functions, which retain the memory portions with the Radio turned off.

Panel dimming is controlled by the Dimmer in the Main Light Switch. A variable voltage is applied through the 19 (LB/R) wire to control the panel lamps' brightness. The display's brightness is controlled by the Main Light Switch. When the park lamps are turned on, battery voltage is applied to the Radio through the 484 (O/BK) wire, and the display dimes.

When the park lamps are turned off, voltage is no longer applied to the Radio, and the display brightens.