I recently purchashed a 1988 RX-7 2+2 5 speed in great condition aside from no ac belt and the sun roof glass is missing. One of the things I can't figure out is how to remove the back seats?I thought they were like how my 3000GT VR4 was and just kind of pop off, but no matter how much I lift and tug it just don;t want to move. Any suggestions on how I may get these off? Thanks in advance.