One last check to make sure the sockets are in the right order and we're ready to reinstall. Use one nut to hold the housing in place. Feed the harness into the body and connect the wiring harness into the body wiring harness. You can now test the lights for proper function. With the hazard lights on the lights should sequence from inside to the outside of the car. With the turn signal on the lights should also sequence from the inside out. Change the bulb sockets as necessary if your sequence is out of order.