i have an 01 pathfinder so it should be the same for me as it will be for you.i took the 2 top vents with the clock in the center out of the center console.then there are two screws under that vent piece, the rest of the paneling is attached with clipswhich just pop out with some gentle effort. i assume you will be buying a wiring harness that will make the wiring much easier.
You might also want to look into getting a module that lets you still use the steering wheel control.
http://www.pac-audio.com/produ...rface
This link shows you how to bypass the E-brake protection so you can view the screen while in motion.
http://www.avic411.com/forum/viewtopic.php?t=4670
Hope this helps