Hey, I read that many of you have done the mod to the sony sa-wm500 sub. I'm trying to do the same to mine, and I'm stuck on the removal of the driver. I have the eight screws out, but I don't know what I should use to get a grip on the driver to pull it out. It seems the only thing that can offer me a gripping surface is the dark gray ring around the screws, and this is some sort of layered paper material...it bends easily. How can I get this thing out? Can I unscrew all the back side screws and push the woofer out that way? Thanks.