Nearing the end of my build and the only thing stopping me is this,

If I connect the rear lights the car starts in ignition 2 without cranking, the starter stays engaged.
If I disconnect the rear lights the ignition is normal but will start and run if I put in an indicator bulb, either side.
Wiring seems normal, cleaned connector and earth, disconnected indicator stork makes no difference.
If connected the lights all work as they should but before cleaning the earth the rear fog was on with the side lights.