Seat bolt in my 2003 suburban, I need to loosen it for my Sirius radio mount. I'm thinking it may be an E-torx? Unfortunately I can't find any local stores that carry E-torx wrenches or sockets (would need to be a deep well socket). I bought a Gator-grip universal socket but it wasn't deep enough to go over the bolt. Or should I just get a vicegrip to remove it and then replace it with a normal nut?
http://home.alltel.net/jthieme/Dscn4754e.jpg