The power antenna works great! It only pops up when I listen to the radio, when I am listening to a CD it stays down. If it is up and I shut the car off, it goes down (heh!) automatically. Keep in mind that I installed this after I had replaced my head unit with the Kenwood. My factory head unit DID NOT have a power antenna lead. I can't say that reception was improved by installing the power antenna. I had already put the Kenwood in and that made a HUGE difference in reception.