I replaced my electric antenna in my old VR when the original packed it in and I'm sure it is very similar with the VZ. I went to supercheap and bought an Aerpro antenna designed for the VR/VS. They also make them for VZ. They are cheaper than buying genuine but do the same job. Just jack up the car and remove the front left wheel. Remove the inner guard lining and you should be able to get to it no problems. I had to modify the bracket that holds it because the aerpro antenna had a smaller motor than the genuine but once I did that it fitted fine. Chop the wires from the old one and connect up to the new one. Simple. Make sure it is earthed properly. Failing to earth it will stop it from going up and down automatically.