Well I tried punching through to the wood, and ended up with a bunch of broken nails.
Okay, here's what I did. I had a shaft radio, and I cut the dash for a DIN style rectanglar radio (slide in). Well the old shaft radio had a mounting bracket that held it up, so to keep the radio level.
On this new one, it's a totally different shape, so the mounting bracket won't work. I was gonna try to use a hose clamp and "hang" it from above, to make it level.
Don't have a torch, but I've got a punch, I'll try that.