okay I thought I would do a quick search to find out the answer but I can not find it anywhere and it appears that no one can agree on what color what wire is behind the factory headunit. Does any have a wiring diagram for the factory head unit so I will know for sure what color wire goes where...trying to find out which is the 12v constant, RR speaker wire + and - as well as the right + and - ...Also which wire always the system to go dimmer...was going to hook up my boost gauge to that wire. Any diagrams, videos, charts, pics, ANYTHING