So, my Kenwood KDCMP145 came in the mail extremely early (I was excited, I love birthdays!). So, I go to try and hook it all up and found out that i can't tell what is what. My factory wiring harness is still in there, so what's supposed to be connected to that? Also, my speakers have their own speaker wires. The left and right fronts are there, but I have no idea which ones are my rear speakers, so I'll have to figure that one out. Do I need a connector to connect my deck to the factory harness for power and then just wire the speaker wires to the deck?