Overview - Microphone Unit

One microphone (Interior Microphone -R74-) is connected directly to the Digital Sound System Control Module -J525-. The other microphones are connected to the Information Electronics Control Module 1 -J794-.

For IW1/IW3, the Left Front Microphone -R140- is connected to the Data Bus on Board Diagnostic Interface -J533- and is >>looped through<< at the Information Electronics Control Module 1 -J794-.

Courtesy of AUDI OF AMERICA, LLC

1. Front Roof Module -WX3-
   • Removing and installing. Refer to FRONT INTERIOR LAMP/READING LAMP, REMOVING AND INSTALLING .
2. 4-Pin Connector -T4-, Black
3. Interior Microphone -R74-
   • Removing and installing. Refer to Microphone Unit in Front Roof Module -R164-, REMOVING AND INSTALLING .
4. Left Front Microphone -R140-
   • 4-Pin Connector -T4-, red
   • Removing and installing. Refer to Microphone Unit in Front Roof Module -R164-, REMOVING AND INSTALLING .
5. Right Front Microphone -R141-
   • 4-Pin Connector -T4-, black
   • Removing and installing. Refer to Microphone Unit in Front Roof Module -R164-, REMOVING AND INSTALLING .