headlights should have a continuous feed from the main splice. that the brake lights work says it is farther down stream like closer to the head light switch OR at the dimmer switch
the head light switch if turned all the way counters clockwise will click and cause the wire that gets grounded when a door is open to become grounded. check the switch be sure it is not all the way ccw
wipers get power from ignition IGN1 so if they are not working check that there is power in the run position at the wiper. ALSO if you changed the moor or wiper switch they have to be a matched pair 2 spd with 2 spd, variable with variable, 3 spd with 3 spd etc.