Audio System

The X5 Audio system consists of:

• Radio/Tape player  - houses radio electronics, tape player, treble, bass, fader, balance adjustments.
• MID  - for ON/OFF, volume control, station selection, digital sound processor (DSP) control, etc. If the DSP system is installed, the audio button in the MID has a second position to activate the controls.

  The memory feature of the X5 DSP has two memory positions.

• Amplifier  - Mounted in the left rear.
  • The standard 200 watt amplifier for the 10 speaker non DSP audio system
  • The optional 12 speaker 440 watt amplifier for the 12 speaker DSP audio system.
• CD Player  - mounted in left rear if installed.
• MFL Controls 
  Fig 1: Identifying Audio System

  Courtesy of BMW OF NORTH AMERICA, INC.

RADIO TEST FUNCTION:  To activate the test switch the radio on and within 8 seconds press and hold the "m" button for more than 8 seconds. The displayed tests include:

• Radio Serial Number
• Radio Production date
• DSP Recognition (1/0)
• Station signal Strength
• Road speed dependent volume control (GAL 1-4)
• Area Use Control - ECE, US, Canada selections
• AF - Manual or Off (Audio freq.)
• TP-V (Traffic Program Volume)

Adjusting the GAL makes the volume increase more noticeable (4) or less noticeable (1).