You will need a flat blade screwdriver.
1. Disconnect the wire from the terminal «minus» battery.
2. Remove the cigarette lighter from the socket.
3. Press the latches with a screwdriver...
4.... and remove the cartridge.
5. Wring out a clamp and disconnect a block of a plait of wires from a socket of a cigarette lighter.
6. Pry with a screwdriver...
7....and remove the fiber.
8. Install the parts in the reverse order of removal.