Disconnect your battery. Open the hood and right behind the fixture are wires heading to a plug which will have clamps on it. Squeeze the clamps together to pull the bulb out of the socket and remove the bulb from the plug. Put the new bulb in the plug, reconnect your battery and turn on the lights to make sure it is fully in the plug. Tighten the clamp once more, and put the bulb back in the opening.