Remove the antenna jack from the audio unit and antenna.

Check for continuity between the center poles of antenna cable.

Check for continuity between the outer poles of antenna cable. There should be continuity.

If there is no continuity, replace the antenna cable.

Check for continuity between the center pole (A) and outer pole (B) of antenna cable. There should be no continuity.

If there is continuity, replace the antenna cable.

Remove the rear roof trim.

(Refer to the Body group - Roof trim).

Disconnect the 1P power connector (A) from the roof antenna.

Remove the roof antenna(A) after removing a nut(B).

Disconnect the roof antenna feeder cable connector(A) on the quater inner panel.

Installation is the reverse of removal.