Circuit/System Description
WARNING: This page is about a different car, the 2021 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
When voice recognition for the infotainment system is started, voice signals from the B24LF Mobile Telephone Microphone - Left Front are passed through the K73 Telematic Control Module to the A11 Radio via the voice recognition audio circuits.