1. Purchase from www.Bimmian.com. About $50.00 US.
2. Pop off allen screw hide plug. Hint: This plug is 2 parts. Inner and outer. Remove inner, then outer.
3. Use a 5mm allen head screwdriver and loosen screw all the way. Don't worry....it will not fall out and cannot be completely removed.
4. Hold screw back....and wiggle out keyhole assembly.
5. Remove keyhole cover by releasing upper and lower clip.
6. Slide on new keyhole delete cover. Hint: Lightly file down any imperfections on new keyhole cover clips. They will hang up on the internals when trying to slide assembly back into place.
7. Install keyhole assembly (with cover installed).
8. Tighten 5mm screw.
9. Install plug.....outer grommet first, then inner plug.