Chrysler Repair: rear brake light replacement, chrysler sebring, wing nuts

Question
I am wanting to replace the rear brake light in a Chrysler sebring sedan 2004. When I looked in the trunk I saw three screws that are some part of the removal process. Got any advise?

Answer
REMOVAL
Disconnect and isolate battery negative cable.
Disconnect wire harness connector from tail lamp unit by sliding the red lock, then pressing release tab.
Remove wing-nuts attaching tail lamp.
Remove lamp from opening in quarter panel (TAIL LAMP UNIT).
Disconnect wire connector from back of tail lamp (left side).
Remove tail lamp from vehicle.