Active Noise Cancellation Unit Removal/Installation

Remove the passenger's center console trim (see CENTER CONSOLE REMOVAL/INSTALLATION ).
Remove the bolt (A), and disconnect the connector (B) from the active noise cancellation unit (C), and remove it.

Fig 1: Active Noise Cancellation Unit, Connector And Bolt With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Install the active noise cancellation unit in the reverse order of removal.