'05-06 Models

Remove the left rear side trim panel (see TRIM REMOVAL/INSTALLATION - REAR SIDE LOWER AREA ).
Disconnect the antenna 2P connector (A) and 14P connector (B) from the XM receiver (C).

Fig 1: Disconnecting Antenna 2P Connector And 14P Connector From XM Receiver
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Loosen the three nuts and remove the XM receiver.
Install in the reverse order of removal.