I missed the amber fogs that were on my original Gen 2 W126 DOT lights. I took the DOT lights apart and found that the amber beam is created by a yellow glass dome that is fitted over the H1 lamp. Today I moved that piece into my Ecode lights.
With the fog reflector removed you have to bend up these tabs to remove the assembly that holds the glass dome. The one on the white fog lights is different and has to be exchanged. I've circled the tabs in red.
Installed:
The glass dome clips into the bulb holder piece, it just pops in and out.
While I had the fixture apart I painted the trim piece inside:
All done:
-J