I just did mine. What a pain. You should remove the center skeleton as mentioned earlier then you'll have a, ok it'll still be a pain

You'll want to remove the gas pedal that is held in by two easy to remove bolts. Now you can remove the cable end from the pedal with ease. Reach down and squeeze the cable connector then pull it out. To install it helped me to fish some wire through the little hole to come out by the gas pedal. Now just connect and pull through. The other side is self explanatory.
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Alan Frazier
'86 GT-'92 3.4 TDC under construction
'84 2m4 daily driver
'88 Silver coupe, auto For Sale