It manually slides into the driver's side A-pillar and looks incredibly dorky when fully extended. Most people never even extend the antenna all the way, resulting in poor radio reception. Grimmspeed offers this antenna delete plate which will delete the factory antenna assembly and allow you to cleanly block off the exterior opening. Grimmspeed offers a replacement antenna option that mounts flush with the inside windshield for those that don't want to lose their antenna completely (sold separately below). Great for shaving off extra weight from your race car or just cleaning up the exterior of your Subie.