Hello as you all may or may not know the transmission computer is known to go bad on 90-91 accords. That is the computer box that controls the transmission and when it is bad your S light blinks funny. Well when I was going to to install this box I was having a serious problem with 1 aspect of the install process and that is where hopefully one of you people can advise/help me.

When you go to remove the carpet on the passengers side it pulls back fine on your right side but when you go to pull/remove the carpet back on the left side near the radio it won't pull back. It is as though there is a screw or staple holding it down/in there. My question is what is holding the left side of the passenger side carpet in so good when you go to pull it back to change the transmission computer? I can't see or find what is holding it in there i.e. staple, screw, or clip? Please help as this is puzzling me and I would like to know the proper way to pull the carpet back on the left side as it gets stuck. Thanks for your answers/help with this question.
Dave