1. See Setup → Speaker. Navigate: Home > Setup > Audio Settings > Audio Routing.
2. For each category shown, select whether the audio routes through the headsets or speakers.
a. Media/Tuner Tuner stations, SiriusXM channels and media files.
b. Phone/Com CB, intercom and phone.
c. Prompts/Nav Voice recognition, navigation prompts, text-to-speech and other audio feedback from the radio.
Figure 1. Speaker or Headset