Is it easy to install a PS 2 MOD CHIP?

[Warlock]

i just ordered a neo2 chip from playstationmods.com and found out there are 3 different versions of the us PS2, versions 1 and 2 are easy to install the chip on but version 3 is a little harder is has the 2 wires next to the dvd drive so you have to completely take apart the console as compared to removing just the bottom cover for versions 1 and 2. This is how to identify what version your US 30001 is:
Serial Number on rear of machine begins with:

u1 = version 1
u0 = version 2
u2 = version 3