take off the kick panel and the hood release latch. the cable should be visible from there. You can they manually use if to pop the lathc, if is is disconnected at the door. If the cable has become disengaged at the hood, Im not sure what you could do, but I assume pulling up on it would do the trick.
<span style='color:gray'><span style='font-family:Courier'>1995 e36 3 Series RIP
1999 e46 3 Series BURN IN HELL
2000 MR-S Roadster= Current</span></span>