Vert has little round interior light fixtures at lower rear panels. Interior lights are not on the same orange wire/dimmable circuit so not relevant to your problem. Look at the switch in post #13. See the hole in one connector? Any conductor from a nail to a piece of household copper wire down through that hole to the connector directly below it at center of rheostat is a rheostat bypass. If everything else is good, you will have full on dash illumination.
