Door insert repair

[notorious]

Looked at quattroworld link and not impressed with quality since a strip of platinum colour is still visible between wood and black.

I still think that without removing 'wood' it is impossible to paint it properly.

I would make an assumption that wood is not glued. If this is correct I would take Dremel, use cutting disc and will shave off securing points/rivets or whatever is used. If it can be separated I would then paint and glue to slicone or other gentle glue so it'll be possible to disassemble in future again.

If my assumption is wrong and the thing is actually glued, then I think it is impossible to separate them without damaging structurally.