on mine (77 with 91 burb frontend), this is what I did....
Take a larger flat head screwdriver, wrap some wax paper or saran wrap so that that you don't mar the paint, and insert it to create a gap large enough to get a coathanger through.
take a wire coat hanger, stretch it out, then make a small hook at the end, and a light arc to it.
insert it from about middle ways on the driver side front in the gap you created. get the hook behind the latch, then pull it across in a quick motion. The idea is to use the hook to accomplish the same action that the cable does...