I have had this factory radio plate around for 20 years and never could figure out what radio it went with. Over the years I have posted pictures and asked questions, it was never solved by the collective mind. Well, I am now happy to report I have solved the mystery quite by accident. It turns out it was a VERY rarely installed factory radio. The radio used with this plate was made by Blaupunkt and Grundig to VW specifications. The radios came in all sorts of versions. LW/AM LW/AM/SW AND LW/AM/FM.
The Answer: Emden and Wolfsburg radio