Audio System

System Description

Overview

The audio unit acts as the processor for all audio functions. You can select of the audio functions from the front panel, the audio remote (on the steering wheel), or by using the navigation voice control system. The audio display provides the current front and rear audio status. For vehicles with the navigation option, additional audio information is available by touching the audio button (See the owner's manual for more details).

Each audio component passes its audio signal to the audio unit. In addition, it communicates with the audio unit via the GA-Net bus. Any open connection in this circuit will cause audio and navigation functions to appear inoperative.

With the premium sound system, an audio amplifier unit powers the speakers, otherwise the speakers are powered directly by the audio unit.

The audio unit has a built-in EEPROM (electrically erasable programmable read-only memory). This memory holds the audio presets (AM/FM radio frequency, sound settings, etc.) even when the battery is disconnected.

The system includes an active noise control system to cancel some of the vehicle noise. It uses a sine-wave-sound output to cancel low frequency noise. Two microphones detect the low frequency sound, and the system outputs a canceling sound through the audio speakers.

Speed-sensitive volume compensation (SVC)

The audio systems are equipped with speed-sensitive volume compensation (SVC). The audio unit receives the vehicle speed pulse (VSP) from the ECM/PCM. The system processes the speed input and increases the audio system volume level as the vehicle speed increases to compensate for the various interior noises that occur at higher speeds. When the vehicle slows down, the volume returns to its normal level. The SVC has four settings: SVC OFF, LOW, MID and HIGH that can be adjusted using the audio unit. The SVC comes from the factory with MID set as the default (See the Owner's Manual for more information).

The navigation system provides voice control for front/rear audio, XM, and CD player. Voice control commands are communicated on the GA-Net (audio unit). When using the TALK/BACK or route guidance (RG), only the center speaker gives the navigation instructions. When using HFL/AcuraLink, the center speaker, the rear speakers, and the subwoofer are muted and the front left/right speakers give the telephone sound. When using HFL/AcuraLink and RG or TALK/BACK, the rear speakers, and the subwoofer are muted and the front speakers give the telephone sound and the navigation instructions. Muting commands are passed on the GA-Net bus. For more information, see the navigation section. The outline of the audio interruption function is shown in the following table.

System Description

NOTE: All items may not apply to this vehicle. See the owners's manual for more information.

Audio Glossary Part 1:

Audio Glossary Part 2:

Audio Glossary Part 3:

Audio Unit Connector for Inputs and Outputs

Audio Unit Connector For Inputs And Outputs Part 1:

Audio Unit Connector For Inputs And Outputs Part 2:

Audio Unit Connector For Inputs And Outputs Part 3:

Display Panel Control Unit Inputs and Outputs

Display Panel Control Unit Inputs And Outputs Part 1:

Display Panel Control Unit Inputs And Outputs Part 2:

Stereo Amplifier Connector inputs and outputs

Stereo Amplifier Connector Inputs And Outputs:

XM Receiver Connector Inputs and Outputs (Canada models, USA models without navigation)

XM Receiver Connector Inputs And Outputs (Canada Models, USA Models Without Navigation):

AcuraLink Control Unit (XM Receiver) Connector for Inputs and Outputs (USA models with navigation)

AcuraLink Control Unit (XM Receiver) Connector For Inputs And Outputs (USA Models With Navigation) Part 1:

AcuraLink Control Unit (XM Receiver) Connector For Inputs And Outputs (USA Models With Navigation) Part 2:

Audio-HVAC Subdisplay Unit Connector Inputs and Outputs (With navigation)

Audio-HVAC Subdisplay Unit Connector Inputs and Outputs (With navigation):

Active Noise Control unit Connector for Inputs and Outputs (Type-S model)

Active Noise Control unit Connector for Inputs and Outputs (Type-S model):

Active Noise Control Front Microphone Connector for Inputs and Outputs (Type-S model)

Active Noise Control Front Microphone Connector for Inputs and Outputs (Type-S model):

Active Noise Control Rear Microphone Connector for Inputs and Outputs (Type-S model)

Active Noise Control Rear Microphone Connector for Inputs and Outputs (Type-S model):

Auxiliary Jack Assembly Connector for Inputs and Outputs