Circuit breaker #7 makes voltage available at all times to the radio through CKT 350 (ORN). This voltage provides power to the radio memory storage for time and station presets. Operating power is available to the radio from circuit breaker #2 through CKT 352 (YEL) when the ignition switch is in the RUN position or the ACCY position. CKT 354 (BLK) grounds the radio at joint connector 1, (lower).