I have 2009 Fusion with the 6 speaker system. 2 in each front door and one in each rear door. In the trunk you can see spots where speaker can be mounted in the rear under the rear window. I got some Sony 3 way speakers that will fit in those spots but I don't see any wireing that can be connected to those speakers. My question is, does anyone know if there is some wireing hidden somewhere in there to hook up speakers in the rear window? Or would I have to run new wireing to that spot? If I have to run new wireing to those speakers, where would I tap into the current system? I really don't want to disassemble the door panels and pull up seats or any molding to do this if I dont have to. Any advice or an easier way to do this? Has anybody out there done this and know an easy way to do it? Any help would be appreciated.