Without Navigation

WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.

Remove the roof console (see HEADLINER REMOVAL/INSTALLATION )
Remove the screws and bracket (A)

Fig 1: Identifying HFL Microphone And Bracket
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Disconnect the connector (B) and remove the HFL microphone (C)
Install the HFL microphone in the reverse order of removal