hot wire ford fiesta encore 1.8tdi 2001?

i cannot get to my ignition key until monday but need to get my fiesta running. I have a spare key that will open doors and apply power to dashboard but will not start engine.
I have taken off panelling around ignition and there are four wires going into the rear of the tumbler.

black
black blue stripe
red
yellow

does anybody know which colour wires are which and which should be connected to make it work?