'04 Turbo S. A couple years ago the release button broke. Took it in, got it released, told real fix would require whole new seat back, cost about $700. Mostly left in down position for carrying stuff, but could raise and lower as needed, using the two release bars that used to be attached to the button to unlatch it. Two days ago one of those bars stopped working. Can't unlatch. Anybody have any thoughts on how to open this up without damaging the seatback? I see no obvious mechanisms like screws or pushpins to get inside this thing.