probably part of a standard wiring harness. They go to/come from the trunk release button that (yours probably doesn't have) is in the driver'* side door. Like said above, the actual release mechanism, the door button and the trunk lock out (these are probably the wires you saw) button are all probably missing on your car, but can easily be gotten at a junkyard.
If you don't have easy access to junkyard, there are a number of members here that go often. Just post your needs in the "wanted" section. I actually have an extra door button and lock out switch you could get, but i would have to make my next yard run to get a release mechanism for you (the one that goes in the trunk lid).
Mike: 1997 SE w/ 183K, aka White Horse
, Gutted Airbox w/K&N, drilled 180* t-stat, tint all around, clear corners w/SilverStars, "PONTIAC" light up tail, PEMs, NGK TR55s