Appendix. Cassette and audio din socket
Pin Lead Purpose Socket diagrams are as viewed looking into socket.
1. white Cassette switch +ve into switch
2. yellow Audio Ground
3. n.c Aerial changeover o/p
4. grey Audio right
5. green Audio left
6. Blue 12V output
7. Black Cassette switched o/p
8. n.c Ground
Black. Ground (metal rim)