Audio

AUDIO

System Description

AUDIO SYSTEM
Refer to Owner's Manual for audio system operating instructions.
Power is supplied at all times
- through 15 A fuse (No. 32, located in the fuse and fusible link block)
- to audio unit terminal 6
- to A/C and AV switch terminal 1
- to display control unit terminal 1
- to woofer terminal 1
- to satellite radio tuner terminal 12 (With satellite radio) and
- to option connector-2 for satellite radio tuner terminal 12 (Without satellite radio),
- through 20 A fuse [No.17, located in the fuse block (J/B)]
- to BOSE speaker amp. terminal 1.

With the ignition switch in the ACC or ON position, power is supplied
- through 10 A fuse [No. 6, located in the fuse block (J/B)]
- to audio unit terminal 10
- to A/C and AV switch terminal 2
- to display control unit terminal 10
- to satellite radio tuner terminal 16 (With satellite radio) and
- to option connector-2 for satellite radio tuner terminal 11 (Without satellite radio).

Ground is supplied through the case of the audio unit.
Ground is also supplied
- to BOSE speaker amp. terminal 17
- to woofer terminal 2
- to satellite radio tuner terminal 15 (With satellite radio) and
- to option connector-2 for satellite radio receiver terminal 10 (Without satellite radio)
- through body ground B203 and B210,
- to A/C and AV switch terminal 5
- to display control unit terminals 3,13 and
- to display terminal 1
- through body ground M35, M45 and M85.

Audio unit, A/C and audio controller are connected by FPC (Flexible Print Circuit).
A/C and audio controller integrates A/C switches and audio switches.

When A/C and audio controller is pressed to audio switch, it sends audio signal to audio unit. Then audio signals are supplied
- through audio unit terminals 1, 2, 3, 4, 13, 14, 15, and 16
- to BOSE speaker amp. terminals 23, 24, 25, 26, 27, 28, 29, and 30.

Audio signals are amplified by the BOSE speaker amp.
The amplified audio signals are supplied
- through BOSE speaker amp. terminals 2, 3, 4, 9,10,11,12, 13, 14, 15, 16, 18, 19 and 20
- to terminals 1 and 2 of front door speaker LH and RH
- to terminals 1 and 2 of rear door speaker LH and RH
- to terminals 1 and 2 of tweeter LH and RH
- to terminals 1 and 2 of instrument speaker LH, RH, and CENTER, and
- to terminals 7 and 8 of woofer.

When one of audio steering wheel switch is pressed to 'X' ON (With telephone system), mode ON (Without telephone system), seek up, or volume up, resistance in steering switch circuit changes depending on which button is pressed.

When one of audio steering wheel switch is pressed to mode ON (With telephone system), power ON (Without telephone system), seek down, or volume down, resistance in audio steering wheel switch circuit changes depending on which button is pressed.

SPEED SENSITIVE VOLUME SYSTEM
Volume level of this system gone up and down automatically in proportion to the vehicle speed. And the control level can be selected by the customer.