need help with rust fix

[nilex10]

i need help fixing rust hole underneath my third rear brake light. light was loose unscrewed the screw . not cant get my light back in cause there are to big off holes there. need help to fix this

 

[wmcreyno]

could you post a picture?

 

[Luke]

I responded to your PM ... pics are a good idea if you need more guidance. Cheers