Are you referring to the front side lights / top of wing?
I can't remember when Morgan stopped connecting them as they did not comply with EU regs - instead there is s a sidelight/parking light in the headlamps. A year or two after the non-compliance issue Morgan stopped fitting those lights on the wings.
Many have re-connected the wing lights - I believe the loom is still under the wings and just needs to be connected into the main loom.
Cheers,