Need to clean the 50 years of dirt and grime out of the metal ash tray and radio bracket.
I was thinking brake cleaner or paint thinner??
Any better ideas??
I would start with Formula 409 and a tooth brush followed with rubbing alcohol and go from there. Brake cleaner can etch the parts and you might not be happy with the result.
After the grime and dirt is gone, polish using a soft metal polish like Brasso.