Radio/Stereo: Description and Operation

System Description

REGULAR AND KING CAB WITH BASE AUDIO SYSTEM
Power is supplied at all times
- through 15 A fuse (No.41, located in the fuse and fusible link box)
- to audio unit terminal 6.

With the ignition switch in the ACC or ON position, power is supplied
- through 10 A fuse [No.18, located in the fuse block (J/B)]
- to audio unit terminal 10.

Ground is supplied through the case of the audio unit.
With the audio unit ON, audio signals are supplied
- through audio unit terminals 2, 4,14 and 16
- to front door speakers and front door tweeters.

REGULAR AND KING CAB WITH PREMIUM AUDIO SYSTEM
Power is supplied at all times
- through 15 A fuse (No.41, located in the fuse and fusible link box)
- to audio unit terminal 6 and
- to subwoofer amplifier terminal 8.

With the ignition switch in the ACC or ON position, power is supplied
- through 10 A fuse [No.18, located in the fuse block (J/B)]
- to audio unit terminal 10.

Ground is supplied through the case of the audio unit.

Ground is supplied to subwoofer amplifier terminal 7 through body grounds M14 and M68.

With the audio unit ON, audio signals are supplied
- through audio unit terminals 2, 4,14 and 16
- to front door speakers and front door tweeters and
- to subwoofer amplifier terminals 2 and 4.

With the audio unit ON, an "amplifier ON" signal is supplied
- from audio unit terminal 12
- to subwoofer amplifier terminal 6.

When the steering wheel audio control switches are pushed, audio signals are supplied
- through audio unit terminal 5
- to steering wheel audio control switch terminal 15 and
- through steering audio control switch terminal 16
- to audio unit terminal 9.

CREW CAB
Power is supplied at all times
- through 15 A fuse (No.41, located in the fuse and fusible link box)
- to audio unit terminal 6.

With the ignition switch in the ACC or ON position, power is supplied
- through 10 A fuse [No.18, located in the fuse block (J/B)]
- to audio unit terminal 10.

Ground is supplied through the case of the audio unit.
With the audio unit ON, audio signals are supplied
- through audio unit terminals 2, 4, 14 and 16
- to front door speakers, front door tweeters and rear door speakers.

When the steering wheel audio control switches are pushed, audio signals are supplied
- through audio unit terminal 5
- to steering wheel audio control switch terminal 15 and
- through steering audio control switch terminal 16
- to audio unit terminal 9.