Do you mean the antenna motor runs constantly? If it is, it will overheat eventually and the entire assembly will have to be replaced. On most antennas, you can unscrew the nut on top with a special socket, then turn on the radio and ignition switch, then pull up on the antenna while the motor is running. When you pull it far enough, the plastic notched cable will pull out too. For Chrysler products you can buy just the mast with the cable. I suspect your Nissan dealer can order the same part. Feed the cable into the tube as far as it will go, then have a helper turn the radio off. As soon as the motor runs the cable down push and guide it in. Once the base of the mast is in the tube, you can reinstall the nut. Don't worry if the mast didn't go all the way in. It will self-adjust after you run it up and down once more.
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Wednesday, December 5th, 2012 AT 12:33 AM