The Morris 1100 is basically the same wiring system as all BMC cars.
It is a very straightforward wiring system with 3 fuses in total.
If you are having problems sorting wires out, it is easier to open the loom up.
With the lights you have a high beam lead, low beam lead from dip-switch to lights.
The high beam will connect to the high beam dash light and the flasher switch on the indicator stalk. The main feed is from the light switch to the dip switch.
Every item has a different colour: ie. Blue/Red for hi beam and Blue/White for low beam.
Have you tried your local library?
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