Overview - Microphone Unit, Before Product Improvement

WARNING: This page is about a different car, the 2024 Audi A4 allroad. However, it is still accessible from the selected car via links, so may be relevant.

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 and IV0, 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-.For IW1 and IV0, the Right Front Microphone -R141- is also connected to the Data Bus on Board Diagnostic Interface -J533- and it is also >>looped through<< at the Information Electronics Control Module 1 -J794-.

For vehicles with IV1 through IV8 and IW3, the Right Front Microphone -R141- is connected to the Control Module for Emergency Call Module and Communication Unit -J949- and is >>looped through<< at the Information Electronics Control Module 1 -J794-.

Courtesy of AUDI OF AMERICA, LLC

Front Roof Module -WX3-
- Removing and installing. Refer to FRONT INTERIOR LAMP/READING LAMP, REMOVING AND INSTALLING .
4-Pin Connector -T4de-, lack
Interior Microphone -R74-
- Removing and installing. Refer to Microphone Unit in Front Roof Module -R164-, REMOVING AND INSTALLING .
Right Front Microphone -R141-
- 4-Pin Connector -T4pa-, lack
- Removing and installing. Refer to Microphone Unit in Front Roof Module -R164-, REMOVING AND INSTALLING .
Left Front Microphone -R140-
- 4-Pin Connector -T4dc-, ed
- Removing and installing. Refer to Microphone Unit in Front Roof Module -R164-, REMOVING AND INSTALLING .