This might help. See the diagram in the thread.
http://www.diyaudio.com/forums/analogue-source/249088-5-pin-din-connection-point-point-rca.html
http://www.diyaudio.com/forums/analogue-source/249088-5-pin-din-connection-point-point-rca.html
Need help with DIN to RCA phono cable troubleshooting