AUDIO SYSTEM

BOSE AUDIO WITH NAVIGATION

System Diagram
System Description
Component Parts Location
Component Description

System Diagram

System Description

The audio system is equipped with the following functions. Each function is operated with multifunction switch, preset switch, touch panel, steering switch or audio recognition. Operation status of AUDIO is indicated at display.

Function

AM/FM radio

Satellite radio

Music Box (Hard Disk Drive)

CF (Compact Flash)

FUNCTION DESCRIPTION

Operation signal

Audio system operation can be performed with multifunction switch, preset switch, steering switch, touch panel function or voice recognition function.

Operating signal is transmitted to AV control unit with AV communication when it is operated by multifunction switch or preset switch. The CD ejection operating signal is performed by hard-wire.
Operating signal is transmitted to AV control unit with steering switch signal when it is operated by steering switch.
Refer to System Description for explanation of voice recognition function and touch panel function.

Screen display

Switching of display is performed with serial communication between display unit and AV control unit.
The image signal to display operating condition is performed with RGB signal, RGB area signal and RGB image synchronizing signal.

AM/FM Radio Mode

AM/FM radio tuner is built into AV control unit.
Audio signal is received by glass antenna, next it is amplified by antenna amp., and finally it is input to AV control unit. Audio signal is input to BOSE amp. and BOSE amp. outputs to woofer and each speakers for AV control unit.

Satellite Radio Mode

Satellite radio tuner is built into AV control unit.
Audio signal (satellite radio) is received by satellite antenna, and it is input to AV control unit. AV control unit outputs audio signal to BOSE amp. The signal is also outputted from BOSE amp. to woofer and each speaker.

CD Mode

CD function is built into AV control unit.
AV control unit outputs audio signal to BOSE amp. and BOSE amp. outputs to woofer and each speaker when CD is inserted to AV control unit.

Music Box Mode

Music CD data is stored on HDD (hard disk drive) that is built into AV control unit, and it can be played.
AV control unit outputs music (audio signal) that is stored on HDD to BOSE amp., and BOSE amp. outputs to woofer and each speaker.

CF Mode

AV control unit has built in CF replay function.
Music (audio signal) that is stored in CF outputs to BOSE amp., and BOSE amp. outputs to woofer and each speaker when CF is inserted into AV control unit.

Component Parts Location

1.	Tweeter RH	2.	Center speaker	3.	Tweeter LH
4.	Front door squawker LH	5.	Front door speaker LH	6.	BOSE amp.
7.	Satellite radio antenna	8.	Rear speaker LH	9.	Woofer
10.	Rear speaker RH	11.	Antenna amp.	12.	Front door speaker RH
13.	Front door squawker RH	14.	Microphone	15.	GPS antenna
16.	Multifunction switch	17.	Steering switch	18.	AV control unit
19.	Disk eject switch	20.	Preset switch	21.	Display unit
A.	Under front LH seat	B.	Inside rear parcel	C.	Inside rear seat back
D.	Inside rear pillar finisher LH	E.	Back of instrument panel	F.	Bottom side of cluster lid C
	: Front of vehicle

Component Description

Part name	Description
AV CONTROL UNIT	Receiving function of AM/FM/satellite radio, replaying function of CD, replaying/saving function of music box (HDD), replaying function of CF and voice recognition function are integrated. BOSE amp. ON signal and sound signal are transmitted to BOSE amp.
DISPLAY UNIT	The display image is controlled by the serial communication from the AV control unit. RGB image signal (audio operation condition) is input from AV control unit. It is equipped with the touch panel function that operates each system by touching the display directly.
BOSE AMP.	It inputs the power supply (Amp. ON signal) and sound signal from the AV control unit and outputs the sound signal to each speaker.
FRONT DOOR SPEAKER	It outputs the sound signal from the BOSE amp. Outputs mod and low sound.
FRONT DOOR SQUAWKER	It outputs the sound signal from the BOSE amp. Outputs high and mid range sounds.
REAR SPEAKER	It outputs the sound signal from the BOSE amp. Outputs high and mid range sounds.
TWEETER	It outputs the sound signal from the BOSE amp. Outputs high range sound.
CENTER SPEAKER	It outputs the sound signal from the BOSE amp. Outputs high and mid range sounds.
WOOFER	It outputs the sound signal from the BOSE amp. Outputs low-pitched sound. Power (woofer amp. ON signal) is supplied from BOSE amp.
MULTIFUNCTION SWITCH	It can operate the navigation and multifunction meter, etc. It is connected to the preset switch with hardwire. The operation signal is transmitted to the AV control unit through the preset switch via AV communication.
DISK EJECT SWITCH	It is connected to the preset switch with hardwire. The operation signal is transmitted to the AV control unit through the preset switch.
PRESET SWITCH	It is equipped with the switch where audio and air conditioner operations are integrated. It is connected with the AV control unit via AV communication. The operation signal is transmitted to the AV control unit via AV communication. The disk ejection operating signal is performed by hardwire.
STEERING SWITCH	Audio, hands-free phone and voice control operations can be performed. It outputs the steering switch signal (operation signal) to the AV control unit.
MICROPHONE	It is used for the hands-free phone and at the voice control. It outputs the microphone signal to the AV control unit. The microphone power (Mic. VCC) is supplied from the AV control unit.
ANTENNA AMP.	The radio signal received by glass antenna is amplified and sent to AV control unit. The power (antenna amp. ON signal) is supplied from the AV control unit.
SATELLITE RADIO ANTENNA	Satellite radio signal is received and transmitted to AV control unit.