"glathrem" wrote in message
.. .
5 pin din on rear panel marked tape/phono. Is this a tape output and phono
input? Anyone got a pinout? Is the pushbutton selector marked with a circle
and line to listen to phono input? Is this high or low level input? Is
there a better newsgroup to post these questions? Am I even close?

If typical of Grundig, the socket is a tape out and phono/tape input. Phono
input is high level (ceramic cartridge). This link should help you figure
out the pins you need to use:

http://www.gamesx.com/hwb/co_DinAudio.html