What is the exact speaker size for sn95's? The front looks like a 5x7, but I can't tell. All the other threads say something different. 5x7, 6x8, 6x9? Which one is right? I don't really like to rig things to much, so I was hoping to just get new ones that are the right size. If you know both the front and rear itd be a big help. thanks-Bobby