Remove the larger, clear liner from the inner housing adhesive and lay it in place around the camera holes.

Use the cutouts for the small silver pads to help align the adhesive.

Use the flat end of a spudger to firmly push down on each piece of adhesive, securing them in place.

Remove the colored liner using the pull tab on the top edge.

If the adhesive starts to pull up with the liner, lay it back in place and use your spudger to secure it again.