There are 4 different options on a 2003 Navigator... Use the "Outfit My Car" function on Crutchfield and select the options. They have what speakers will fit...
The door speakers are 6"x8"...
Here is the link to Crutchfield...
http://www.crutchfield.com/cgi-bin/autoinfo/autoinfo.asp?lp=%2fapp%2fCar%2fMyCar.aspx
The 2003 Lincoln Navigator has 32 valves.
The 2003 Lincoln Navigator has a V8 engine.
The 2003 Lincoln Navigator air conditioner airflow is directed by lending doors. The blending doors open and close to direct the cool air. The blending door for the passenger side vent is probably stuck closed.
The 2003 Lincoln Navigator is a gas-powered vehicle.
The 2003 Lincoln Navigator has a 4-speed automatic.
Where is the amplifiers in a 03 Lincoln navigator
The curb weight of the 2003 Lincoln Navigator is 5822 lbs..
The height of the 2003 Lincoln Navigator is 6 ft. 5.8 in. (77.8 in.).
The 2003 Lincoln Navigator is 17 ft. 2 in. (206 in.) long.
The 2003 Lincoln Navigator's turning circle is 40.4 ft..
The maximum payload of the 2003 Lincoln Navigator is 1479 lbs..
The 2003 Lincoln Navigator has double overhead cam (DOHC).