As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: FLIGHT CREW REPORTED FUMES IN THE FLIGHT DECK CAUSED BY THE AUDIO SELECTOR PANEL. EMERGENCY WAS DECLARED FOR ARRIVAL TO DFW. FLIGHT LANDED WITHOUT ISSUE AND TAXIED TO THE GATE. REPLACED CAPTAINS AUDIO CONTROL PANEL.