03 nissan pathfinder keyless entry

Does anybody know how to program a factory key fob for a 2003 Nissan Pathfinder. I did a search and didn't find much. Thank you for your help...

Instructions for Altima The blue line above is a link to the Altima instructions. Following is a more indepth for a Maxima, seems to be the same procedure. He just forgot to mention the lock doors with door lock switch when inside the vehicle. If you are still looking for an answer, this is from Maxima.org: To enter the ID code, follow this procedure. Entering "Setting mode": (1) Close and lock all doors. (2) Insert and remove the key from the ignition more than six times within 10 seconds. (The hazard warning lamp will then flash twice.) At this time, the original ID codes are eliminated. ID code entry: (3) Turn ignition key to "ACC" position. (4) Push lock button on the new remote controller once (for example, if door is locked using the remote controller during this ID code entry enable state, a new ID code can be entered). At this time, the new ID code is entered. (The hazard warning lamp will then flash twice.) Additional ID code entry (5) If you need to activate additional remote controllers, unlock the driver's door, then lock again with door lock knob. (6) Push lock button on the additional new remote controller once. (7) This ID code entry enable state and setting mode remain until the driver's door is opened. NOTE If you need to activate more than two additional new remote controllers, repeat the procedure "Additional ID code entry" for each new remote controller. If the same ID code that exists in the memory is input, the hazard warning lamps will flash twice but the entry will be ignored. Entry of maximum four ID codes is allowed and any attempt to enter more will be ignored. Any ID codes entered after termination of the "setting mode" will not be accepted. Additionally remote control signals will be inhibited when an ID code has not been entered during the "setting" mode.

I had to do it a couple of times but I got it to work. Thanks for your help.... Josh