Many of the 67/68 dashes have issues with the radio speaker perforation area.
They develop waves and no longer lay flat.
I've thought of affixing something to the underside, but most anything will show through the small holes. Anyone have a remedy?
There are many other issues with these dashes as they near retirement age, so I'll add more to this thread after we talk about the speaker area.
By the way, I did find an epoxy that sticks well to the foam without turning it into mush, but I need to visit the shop to get the brand and it's late.