1956 400 What is this?

Posted by Craig Hendrickson On 2012/4/9 14:08:20

I'm in the process of chopping up my 1956 400 "rust bucket" parts car. After removing the dash, I find this "whatsit" mounted on the left upper inside of the firewall. It says "Motorola" and looks kind of like one of those old drive-in movie speakers. Anyone have a better idea?

Craig