AntennaX Power Antenna Replacement Mast for Nissan Altima fits 1993 thru 1999 Nissan Altima This is a new high quality aftermarket stainless steel Power Antenna Mast that cost less than 50% of the dealer factory retail price If you can hear your power antenna motor running, clicking, or grinding when you turn on and off your radio, then all you need to do is replace your power antenna mast If you do not hear your Power Antenna Motor running, then you will need to replace the whole unit Installation is very simple and can be done without removing the power antenna motor from your vehicle Detailed step-by-step installation instructions are included and written in simple english and include diagrams, photographs, and troubleshooting