underside of trunk
Can you provide a picture. If its the box under the rear shelf its for the sound system.
it is the box that is under the trunk compartment under the car, i believe it has something to do with the fuel system the box has two tubes coming out of it one i believe goes to to the gas tank and the other one go,s through the frame to the front of the car.
Search Mercury Grand Marquis Questions
Mercury Grand Marquis Experts