I am trying to put in a new head unit, should be easy right.. wrong, I have the Bose system and the double din unit, but a lot of the wiring for the new head unit doesn't match, also the rear speakers are tinny and no sub is kicking in. As you can see from the pictures, in the red circle I have no connector that goes in there and the yellow circle the wires don't go anywhere on the other side, the red connector in the pictures I have no idea what or where that goes, can somebody please help.
https://mega.nz/#F!fjZjzYDL!A0Z6bPi7OG6vJB3hufLhtw
https://mega.nz/#F!fjZjzYDL!A0Z6bPi7OG6vJB3hufLhtw