I have a 300zx and i just swap the wire harness?

I understand 300zx but don't know what year or features you car has Hicus 4 wheel steering? Automatic trans I ume or what year. I have all the service manuals back to 1994 on this lap top. And on 1990 and newer how the heck did you get the harness behind the brake hoses and tin shields back on?