The Lexus RX300 was released in North America in 1998. Included as part of the SUV's entertainment features was an antenna to pick up AM/FM signals. The antenna is made of nylon and metal and is retractable. As a result of the general wear and tear caused by raising and lowering the antenna, the mast might occasionally need to be replaced
Unscrew the chromium-plated nut that secures the antenna to the RX300 using needle-nose pliers. Pull the old antenna straight up and out of the housing.
Ask a friend to turn the ignition key to the "Radio Only" position. The motor that powers the raising and lowering of the antenna will start and run for a moment. When it stops, the antenna is in "Up" position.
Fully uncoil the new antenna. Fully extend the metal telescopic part, drawing the nylon rack into the tubing.
Insert the rack into the antenna hole in the bodywork, orienting the rack teeth so they are facing forward. Push the rack into the hole until it will not go in any farther.
Ask your assistant to turn the ignition to off. The motor will start the mechanism to retract the rack. As the rack is being drawn in, guide the metal part of the antenna into the hole. The antenna should be withdrawn completely.
Replace the chromium nut that holds the antenna in place. Turn the ignition to "Radio On" and off a few times to ensure the new antenna is properly installed.
