Radio, Stereo, and Compact Disc: Description and Operation

The Radio receives battery voltage at all times on CKT 340 through Fuse 2 to keep clock and preset station memory alive when the Ignition is "OFF." With the Ignition Switch in "ACCY" or "RUN," voltage is applied to CKT 43 through Fuse 9 to enable Radio operation.
When the Park Lights or Headlights are turned "ON," voltage is applied to the Radio on CKT 9 from the Headlight Switch. When voltage is applied to CKT 9 at the Radio, the Radio will dim the display a preset amount. With the Headlights or Park Lights "ON," the Radio display may be dimmed manually using the I/P Dimmer Switch. The I/P Dimmer Switch varies the voltage on CKT 8 to the Radio to control display dimming.