first thing I would do is go to a junk yard, buy a factory radio harness from them, wire it in (very simple just match exact wire colors) basically undo the stupid decision that somebody made before you to cut it out, then you can just plug in your harness adapter, and every thing will be labeled for you (and probably colored coded to match the radio's harness

don't worry the Honda in my name is my motorcycle!! 98 green RS