- Remove the trunk mat(s) and the existing foam insert.
- Remove the rear plastic trim piece by extracting the cargo net pins and firmly lift up (there are a number of clips that are along the top edge)
- Remove the left side trim piece by removing the 2 plastic rivet pins and pulling the rear top lip down from under the rubber molding and finally pulling out as it releases the velcro at the front edge.
- Remove the right side trim piece the same as the left, except it has only 1 plastic rivet pin.
- Remove the felt and you now have a bare trunk. This is what mine looked like and notice it has no bolt holes for attaching the center hub clamp of the spare wheel.
- Lay in the felt pad and reinstall the left and right trim pieces.
- Reinstall the rear plastic trim piece.
- Install the rubber pads as shown (note that I received 6 rubber pads - 4 thinner ones with white lines and 2 that were thicker and did not have lines, use the 4 thinner ones with white lines.)
- Bolt the cross bar in using only the middle 4 bolt holes. My car did not have holes in the trunk for the outer 4 bolt holes. You'll see below that I just laid the bar on top of the left and right trim pieces and bolted it with the inner 4 holes. A true spare trunk would have those outer holes and different trim pieces.
- Lay in the front foam insert
- Lay in the left and right foam inserts.
- Lay the spare tire/wheel in upside down.
- Lay in the foam insert inside the wheel
- Everything should be level across all those surfaces.
- Install the trunk mats and you're done!
You lose about 4 inches of depth. A good way to judge this is notice how the front bump between the trunk floor and the back seat is now level with the trunk mat. Also after driving around this way, the spare wheel has not budged at all. It is very secure.
One last note, is that the mats are a little tight lifting / lowering across the cargo net rings. Technically, the spare trunk has a different rear trim piece that locates those rings differently. However, my net is still fully functional and just takes a little manipulation to lift the mats over the rings.
Hope this helps!