Same way I've installed mine on my two cabs that I've done Really does work really good if you go slowly. Thanks for sharing!
If I may add one tip that's not in this thread already that I was given by my decal printer. Be sure to wash your hands really well right before you start the process. This will limit the amount of oil that you transfer over to the decal at the start with your fingers. Having dirty/oily hands can cause some adhesion challenges in the corner that you start at, especially if you aren't super careful with your hands. Goal is still to not touch the sticky side but inevitably you do a little bit at first.