Cupholder insert for the rear armrest of BMW E46. The backing is inserted under the leather. Use the backing to mark the location for your cuts. A single slit in the center "web" is also needed to get the backing into the armrest. Carve out the foam as needed to clear the cupholder. Insert the backing, insert the cupholder and use 6 wood screws to hold them together. The screws I used have 4mm outer thread. Use cabin-heat-resistant material, dry-fit the part and confirm secure retention and unobstructed operation.
