Can anyone help ? Rear wiper, heated rear screen, washer and tailgate glass release all stopped working, checked all fuses and all are ok, checked wiring harness from car into tailgate and found broken wires, repaired broken wires and now have heated rear screen working but still no wiper, washer and glass release, checked wires for continuity, have continuity from inside the roof lining to each of the component plugs, so am now at a dead end, dont have £106 per hour spare at the moment (BMWs' hourly rate), there must be a fuse or relay somewhere that i'm not seeing that provides the power to these components, anyone have any suggestions,