The unit has a little "key" which passes through a small notch cut out in the console hole at the 12 o clock position, ( I think - may be 3 o clock) then turned so the key prevents it coming out. It's a tight fit, and without the console out, you need to access from the driver side by removing the screws of the trim in the foot well of the plastic section there, then pull it away so you can get your hand in behind it to the ciggy unit.
Pull off the 2 wires which have spade connectors, then turn the unit until you feel the key line up with the slot in the hole. Then press it upwards so it can be removed from above. The little collar you see in the pic below, should come out with the lighter unit.
Alternately, there are two slots in the side of the metal lighter sleeve - you can see them in the first pic at 12 and six o clock - the small horizontal rectangular ones - the plastic trim which you can see around the unit at the top of the console in the second pic, has two small plastic protrusions which slot into those little holes, you need to get under the console and use a flat screwdriver to slightly flatten the metal lighter sleeve so it will pass upwards and out.
