2) Unplug the lead from the changer, de-mount it and remove it from the car.
3) Place the unit upside-down on a flat, clean, and preferably anti-static, surface.
[[file:Lens_Cleaning_01.jpg|thumbnail|none|]]
4) Unscrew and remove screws 1 & 2 then turn the unit around and remove screws 3 & 4
<gallery>
file:Lens_Cleaning_02.jpg
file:Lens_Cleaning_03.jpg
</gallery>
5) Lift the back end of the cover up until it is at approx 90deg's to the unit and pull it away from the the face plate.
<gallery>
file:Lens_Cleaning_04.jpg
file:Lens_Cleaning_05.jpg
</gallery>
6) Remove the face plate by tilting it forwards 90deg and and away from the other cover.
8) Gently remove the inner assembly of the unit from the other cover. You may find that the rubbers that form the anti-shock suspension are stuck to the sides of the cover but they can be gently persuaded out - they are not glued and you will not damage anything if you are careful. Take care not to touch the circuit board!
[[file:Lens_Cleaning_06.jpg|thumbnail|none|]]
9) With the assembly removed turn it over so that the PCB is facing down. You should now be able to see the lens.
<gallery>
file:Lens_Cleaning_07.jpg
file:Lens_Cleaning_08.jpg
</gallery>
10) Dip one end of the cotton bud in the alcohol and, GENTLY, using a twisting motion, wipe the lens. Then use the other (dry) end of the cotton bud to remove the excess fluid and leave it to dry off completely.
[[file:Lens_Cleaning_09.jpg|thumbnail|none|]]
11) Turn the complete inner assembly back over so that the PCB is facing upwards and place it back into the cover you removed it from making sure that it is the correct way round.
12) The suspension rubbers may have come unseated from the recesses on the plates at either side. Put them back in place and line up one of the screw holes on the inner plate with the hole in the cover and fix with one of the screws. Repeat this until the four screws are back in place. Be careful not to cross thread the screws! (Tip '''Note: line up the screw and slowly turn it anti clockwise until you feel it 'click' then tighten.'''<gallery>file:Lens_Cleaning_10.jpgfile:Lens_Cleaning_11.jpg</gallery>
13) Replace the face plate.
[[file:Lens_Cleaning_12.jpg|thumbnail|none|]]
14) Offer up the other cover to the face plate at a 90deg angle to it. Ensure the tabs on the face plate are in their holes on the cover and lower the cover down so that it is seated fully.
<gallery>file:Lens_Cleaning_13.jpgfile:Lens_Cleaning_14.jpgfile:Lens_Cleaning_15.jpg</gallery>
15) Replace the remaining four screws.
16) Remount the unit in the car and plug in the lead.