Clip on the switchback LED angel eye rings. Grab the two black wires through the low beam bulb back openings.

Put back the black trim. If you install it properly, you will see that the LED halo rings align with the inside trim. You don't have to worry about the rings protruding out because the rings will be pushed back to their appropriate location when you install the lens back.

Afterwards, please work on the driver side since later you need to connect the wires together.