I recently completed this project on my 2016 2-door cooper. Fortunately, my doors had no extra trim pieces pre-attached so I did not have to 'drill them out'. I just had to drill the holes through the door cards with my cordless drill and then insert the trim pieces, connect the additional LED light modules to the extra wiring connections that were not being used already, and then secure the trim pieces with the metal axial clips. I decided to take the trim pieces that went around the interior door handles and door speakers to a local auto paint shop to have them professionally pained gloss black to match the new trim pieces I was installing.
Painted door handle trim:
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Painted speaker trim:
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Detailed view of how back end of trim pieces are secured to the inside of the door cards with metal axial clips (I pushed them down onto the trim pegs with a small rachet bit:
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The front "swoosh" trim piece secured with metal clips and the new LED lighting module (I used some black electrical take to make sure there would not be any unwanted light bleed-thru.
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Rear trim piece secured to door card and new LED module:
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New led module with the optical conductor inserted into the lighting module. The door card had a clip built into it to snap the LED module securely in place.
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New led module with the optical conductor inserted into the lighting module. The door card had a clip built into it to snap the LED module securely in place.
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It was not until after I started this project that I realize there was a third unused lighting connector in each door. I was confused about what this was for but further research revealed this is for a light to shine in the lower door pocket with a third LED module and a small u-shaped optical connector. So I ordered two more LED modules and the little clear plastic optical connectors and installed those after they arrived a month later. Those required no drilling as the clips to attach the light and plastic u-shaped optical conductor are already in the back of the door card and the little hole for the light to shine into the door pocket is already there.
Clips to attach LED module and u-shaped optical conductor for bottom door pocket.
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With LED module installed but still missing the u-shaped LED optical conductor. One end snaps into the LED module and the other end inserts into the 'starburst' plastic circle on the back of the door pocket. There is a small hole (maybe 2-3mm) that the end of the optical conductor sticks through to shine some light from the back of the door pocket. The white box on the far right of this photo is the light that shines onto the ground from the bottom of the door if you are trying to figure out where this is inside of the door.