check fuse panel door on the inside ,if not there check owners manual. fuse box diagrams
http://www.autozone.com/az/cds/en_us/0900823d/80/19/31/35/0900823d80193135/repairInfoPages.htm
On a 2001 Mercury Grand Marquis : The fuel tank is mounted vertically behind the rear seat
According to the 2001 Mercury Grand Marquis owners manual the fuse panel is below and to the left of the steering wheel , by the brake pedal , and has a cover on it
A 2001 Mercury Grand Marquis will hold approximately 20 gallons of gasoline. The fuel economy is 17-25 miles per gallon.
It will, though technically it is illegal to istall on older motor into a newer car for emissions reasons.
Yes, there is a free stereo wiring diagram for this car. It is in its maintenance manual, or a person could ask for a print out at an auto part store.
On a 2001 Mercury Grand Marquis : firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
5
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Mercury Grand Marquis
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Mercury Grand Marquis
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Mercury Grand Marquis
firewall 4 - 8 3 - 7 2 - 6 1 - 5 front of Mercury Grand Marquis
next to the crank pulley