Carnau, I don't know if your still around, but I had a question if you are. I have been having difficulty with my wife's 2005 sub in this same area. I have sourced the problem to being a lack of power/voltage going to the actuators. (a brown wire) I have traced the brown wire to what shows to be in your diagram as Inline connector 350. The only slight difference is my connector is located on the passenger side rear pillar (behind the wheel well), as opposed to the passenger side pillar located in front of the wheel well. anyways, I have back fed voltage from the cigarette lighter and the system is working. I swear ive checked every fuse, I was wondering if you had any place to point me to?