Hi, im just wondering if anyone knows the product JBL uses for the 4348 (or 4344 series) speaker veneer, or just the best way to bring one side of the speaker back to life after a sustained bit of sun has lightened up that face, compared to the rest.

I thought i'd best investigate this before i use some random bottle of Howards Restor-a-finish to see if anyone here has done this before.