Detach the top of the tow bar and also take out the mount for the antenna. To remove the antenna base, one has to remove some of the trim on the rear window. Slightly pop the rear of the headliner down so as to reveal the antenna mounting bolt then un bolt it carefully so that the headliner does not crease. After that, take off the antenna base and pull the electrical connectors apart. The process of installation is carried out in the opposite manner to the removal of the system.