The radio has 2 holes on each side of it, one above the other. These holes are for the removal tools, 1 tool needed for each side. The removal tools consist of "U"-shaped rods with pointed tips. The...
In the fuse panel located on the drivers end of the dash ( the removable plastic
fuse panel cover is visible with the drivers door open )
fuse # 29 is a 15 amp fuse for the radio , and
fuse #20 is...
P0451 - Evap Emission Control System Pressure Sensor Performance
Improving my answer - P0451 - intermittant open or short in the fuel tank pressure
sensor ( FTP ) or the FTP sensor signal
The GVW can be determined using your vehicle identification number. There is a decoder located at this site: http://www.explorerforum.com/ntrprize/VIN.htm