Here you go: Hard Surface Tutorial http://cgi.tutsplus.com/tutorials/how-to-bake-a-flawless-normal-map-in-3ds-max--cg-925 https://www.youtube.com/watch?v=xY_mEy5X-fo https://www.youtube.com/watch?v=ZFSXtjFI9ig
You should UV properly. Watch some videos/read some tutorials for UVing inside of Maya, it's reasonably simple and will yield MUCH better results (as your auto UV is.... cruddy, and is indeed most of what's causing the issues here).