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Home >> Audi >> 2023 >> A5 Quattro Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Communication (Coupe)) >> 91 Communication >> Telephone System >> Overview - Microphone Unit >> Overview - Microphone Unit, Cabriolet, From Product Improvement

Overview - Microphone Unit, Cabriolet, From Product Improvement

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The microphone unit is comprised of the Microphone Unit in Front Roof Module -R164- and the Seat Belt Microphone Control Module -J886- with the seat belt microphone.

The Microphone Unit in Front Roof Module -R164- is installed in the Front Roof Module -WX3-. Up to three microphones may be installed, depending on the equipment.

One of these microphones (Interior Microphone -R74-) is directly connected to the Information Electronics Control Module 1 -J794-. The other microphone (Telephone Microphone -R38-) is connected directly to the Control Module for Emergency Call Module and Communication Unit -J949-.

The Microphone Unit In Front Roof Module -R164- in the Front Roof Module -WX3- can only be replaced as a complete unit. Replacing the individual microphones is not possible.

GWWA91-12766Courtesy of AUDI OF AMERICA, LLC
  1. Microphone Unit in Front Roof Module -R164-
  2. Right Seat Belt Microphones
  3. Left Seat Belt Microphones
  4. Seat Belt Microphone Control Module -J886-

Microphone Unit in Front Roof ModuleR164

Fig 1: Microphone Unit In Front Roof Module -R164-, Convertible
GWWA91-12276Courtesy of AUDI OF AMERICA, LLC
  1. 4-Pin Connector -T4t-
  2. Telephone Microphone -R38-, Grey
  3. Interior Microphone -R74-, black

Connector Assignment

Fig 2: Microphone Unit In Front Roof Module -R164-
GWWA91-10674Courtesy of AUDI OF AMERICA, LLC

1 - 4-Pin Connector -T4t-

  1. Microphone 1, Telephone Microphone -R38-
  2. Microphone 1, Telephone Microphone -R38-
  3. Microphone 2, Interior Microphone -R74-
  4. Microphone 2, Interior Microphone -R74-

2 - Microphone 1, Telephone Microphone -R38-

3 - Microphone 2, Interior Microphone -R74-

Removing and installing, Microphone Unit in Front Roof Module -R164-. Refer to Microphone Unit in Front Roof Module -R164-, REMOVING AND INSTALLING, CABRIOLET .

The Seat Belt Microphone Control Module -J886- is located under the left front seat. The seat belt microphones are connected to the Seat Belt Microphone Control Module -J886-.

The Seat Belt Microphone Control Module -J886- evaluates the signals and transmits the best signal to the Control Module for Emergency Call Module and Communication Unit -J949-.

GWWA91-11489Courtesy of AUDI OF AMERICA, LLC
  1. Seat Belt Microphone Control Module -J886-
  2. Control Module for Emergency Call Module and Communication Unit -J949-
  3. CAN Bus
  4. Driver Microphone 1 -R224-
  5. Driver Microphone 2 -R225-
  6. Driver Microphone 3 -R226-
  7. Not Installed
  8. Front Passenger Microphone 1 -R227-
  9. Front Passenger Microphone 2 -R228-
  10. Front Passenger Microphone 3 -R229-