The wires are different on my 03. That is the other wire colors around the grey wire are different.
One thing I should add is that if the gears are not lined up when you hit the button the locker it will not lock. You will need to either turn or gently spin one wheel for it to engage. It is only at this time the light will stop flashing and engage the gears. I wouldnt drive, engage or try to engage the locker on dry pavement (for the newbies like me).