Attached are instructions to install the MR2 seat rails on Celica seats. If you have a 2003 or later MR2, the passenger seat will have an additional crossbar as noted in the instructions. My understanding is it was for attaching a child seat. The only tricky parts are installing the connecting tube for the recliner, and not trying to remove the seat height adjuster knob until the seat cushion is unbolted. Unbolting first gives more room to pull out the clip.