Playing Recordings in Random Order
The random play function works in two different modes:
- Random playback of tracks on a CD
- Random play of all tracks on any disc in CD changer
When the random play function is on, all tracks on the selected CD are played in random order. A new playback sequence is created only after all the tracks on the disc have been played. If another disc is selected while random play is active, this mode will be canceled and the new disc will be played starting from the first track.
In multi-disc mode, IAM uses the current track as the first random track and then plays an additional two tracks (in the presence of) on this CD. IAM will then randomly select another CD and play the three randomly selected tracks. This sequence continues until all tracks from all CDs have been played.
MP3 function
The CD player supports playback of MP3 files. This format allows you to group files into folders. You can also place all files in the root directory of the CD.
It is possible to play MP3 files in random order and in repeat mode, just like a regular CD in CD format.
Automatic volume control (AVC)
The AVC function controls the volume according to the speed of the vehicle. As vehicle speed increases, the volume level is adjusted to compensate for additional road and vehicle noise. There are four settings for AVC:
- Turned off
- Low level
- Average level
- High level
The default setting is medium.
Changing the AVC level is made available by long pressing the TONE button and selecting AVC with the rotary control to change the level.
The ICM uses speed sensor signals to calculate the desired volume change. The vehicle speed signal is received via the medium speed CAN bus. The average of the four wheel speeds is used. When the AVC system receives an erroneous vehicle speed signal, the system does not change the current volume setting.
AVC is controlled by the audio system amplifier.
CD player error messages
When an error occurs in the CD player, IAM will alert the user by displaying an error message. It will be displayed until the error is cleared while the CD mode is selected. CD related errors do not affect other IAM zones. The user can select different modes of operation of the audio system (sound sources).
Error message in IAM display | Cause |
deck error | Mechanical error, CD jam, servo related error, etc. |
Disc heating | CD internal temperature too high |
Unreadable disk | Invalid disc, CD ROM inserted, disc reversed, etc. |
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