Did some looking around but still not Sure if this is posted here or not Wiring Diagrams For * E23 1982 to 1986 7 Series * E24 1983 to 1989 6 Series * E28 1982 to 1988 5 Series * E30 1983 to 1992 3 Series * E31 1991 to 1995 8 Series * E32 1987 to 1993 7 Series * E34 1988 to 1995 5 Series http://shark.armchair.mb.ca/~dave/BMW/index.html
Might as well put the Electrical Troubleshooting Manuals and various owner's manuals here, too! http://wedophones.com/BMWManualsLead.htm