Classic/Antique Car Repair: where to find, good luck jack, particle board

Question
Hello Jack,

Do you know of a place that can refurbish the rear window decking that is made from molded particle board. It is that part of the interior that the rear speakers are mounted just under.

Answer
I don't know what car you are talking about, but if it is just a shelf panel, you could use cardboard, or a plastic material such at plasticore..  It it plastic cardboard.  It comes in 4x8 ft. sheets.  Double it if you need to.  They use this stuff to make signs out of.  Anything that is thin and sturdy.  then cover it with your trim material.  I doubt that this is a Model a question, sinc they did not have radios.
Whatever you have, have fun with it.
Good luck
jack