Radio/Stereo: Description and Operation

BOSE SYSTEM
Power is supplied at all times
^ through 15 A Fuse (No. (62), located in the fuse and fusible link box)
^ to audio terminal (6).
Power is supplied at all times
^ through 15 A fuse [No. (22), located in the fuse block (J/B)]
^ to audio amp. relay terminal (3)
With the ignition switch in the ACC or ON position, power is supplied
^ through 10 A fuse [No. (21), located in the fuse block (J/B)]
^ to radio and CD terminal (10).
Ground is supplied through the case of the radio.
Ground is also supplied
^ to audio amp. relay terminal (2),
^ to front door speaker LH terminal (2) and
^ to front door speaker RH terminal (2)
^ through body grounds (M13), (M73) and (M111).
^ to rear speaker LH terminal (1) and
^ to rear speaker RH terminal (1)
^ through body grounds (B16) and (B19).
When the audio POWER button is pressed, power is supplied to audio amp. relay (1) from radio and CD player terminal (12).
Then audio amp. relay is energized and power is supplied
^ to front door speaker LH terminal (5)
^ to front door speaker RH terminal (5) and
^ to rear speaker LH terminal (3) and RH terminal (3)
Audio signals are supplied
^ through audio terminals (1), (2), (3), (4), (13),(14), (15) and (16)
^ to terminals (3) and (6) of the LH and RH front speakers and terminals (2) and (4) of the LH and RH rear speakers
^ to LH and RH tweeters through terminals (1) and (4) of the front speakers.

BASE SYSTEM
Power is supplied at all times
^ through 15 A fuse [No. (62), located in the fuse and fusible link box]
^ to audio terminal (6) and,
^ through 7.5 A fuse [No. (40), located in the fuse block (J/B)]
^ to CD player terminal (24).
With the ignition switch in the ACC or ON position, power is supplied
^ through 10 A fuse [No. (21), located in the fuse block (J/B)]
^ to audio terminal (10) and CD player terminal (21).
Ground is supplied through the case of the audio and CD player.
When the audio power knob is pushed to the ON position, the audio signal is supplied
^ through radio terminals (1), (2), (3), (4), (13), (14), (15) and (16)
^ to terminals (1) and (2) of the LH and RH front speaker, LH and RH tweeter and LH and RH rear speaker.