Matt,

Yes that is a rubber insert in the middle of the hole. What I am confused about is how does the pole for the light mount? Does it slide though the rubber grommet? If so, it does not seem to have much support if I am looking at it correctly.

Do you have some close ups of how this light pole would mount?

Thank you for all of your help.

Take care,
Tom

Owner of Classic gauge and Cluster. www.classicgaugeandcluster.com