no crank on 1.8 audi a4 on 1997 Audi A4

Have a no crank situation on 97 a4 1.8 engine.Car will start if I turn ignition on and jump starter leads.I have bought 2 manuals, neither one shows complete wiring diagram. It appears switch is ok when checked.I dont have wire diagram as wires leave transmission and by the fuse relay

1 answer
Sounds like starter/solenoid problems.