System Description: Overview: Notes

WARNING: This page is about a different car, the 2013 Acura MDX, 2012 Acura MDX, 2011 Acura MDX, and 2010 Acura MDX. However, it is still accessible from the selected car via links, so may be relevant.

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

Each audio component passes its audio or 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.

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

With the ELS and the premium sound system, a stereo amplifier unit powers the speakers. The 6 CD changer output can be directed to the audio system.

The XM can be output to either the front or the RES (rear entertainment system). However, if the XM is playing in the front, the CD changer and Bluetooth audio cannot be used for the RES. The RES (built into the audio-navigation unit) can be used to play a CD in the rear.

A security signal is daisy-chained between the audio, RES and navigation components for integration into the vehicle's alarm system.