Caleb,
here is the thread on the 47 pontiac radio and it appearsto be identical to the one that you pointed to on Ebay.

http://www.stovebolt.com/bboard/cgi-bin//ultimatebb.cgi?ubb=get_topic;f=42;t=000002#000023

Fred


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!