new member saying hello

[eldoctoro]

Hi

My name is Tom and I just joined in October. I am the original owner of a 1994 Miata and I also have a 2006 Miata. They are a joy to drive and I doubt I will ever find a car as much fun as these cars are for me.
I want to keep them original in every way as much as possible. I know I need a new radio for the 1994 . It is the Panasonic with two speakers in each door , two in each head rest and a subwoofer in each seat. How might I be able to get a replacement? Anyone able to advise me ?
Thank you

Tom