update: got to work on my new (used) HU... undid the old radio harness and the OEM harness adapter. put in the new one, and matched up all the colors. the harness adapter has 4 wires that don't match up with anything on my headunit.
1) orange w/ white stripe
2) orange w/ black stripe
3) pink'ish salmon color, possibly an orange?
4) solid blue (the blue with white stripe was the turn on according to the little tag on the wire on the radio harness)
so i capped those off with a wire nutt, the two striped orange ones are together, since they go together (is that okay?)
buuuuuuuut, HU doesn't turn on... causes? i mean i could triple check, but i am 99.999999% sure EVERY wire has a home besides those above. and they are all illumination or dimmer, and i believe the solid blue was for power antenna (which i don't have). (i think the dimmer had a positive and negative, thus orange w/ white and orange w/ black)
i'm extremely upset about this right now... i really wanted it to work =(