What do i need to do to swap my Mach 460 head units out for an 02 new edge HU? i have the bezel on its way and im switching out my console as well (getting it monday) So i ordered a cheap Premium 01+ wiring harness that comes with 3 plugs (ones amp, the 16 prong, and 20 prong) so i just need to know how to wire it into my sn95

ps i got this because i plan on getting a screen or dd head unit later when i get the money.