Hey to anyone out there that might understand this better than I. I am working on restoring and 89 RS that has the automatic trunk latch and when i was putting it all back together it is not working and i seem to have an extra wire sitting around with nowhere to go.. I have the wire for the light, the wire to the magnetic plate (or whatever that thing is) and then one more black wire that doesnt apparently go to anything. and the motor isnt working.

Any sugggestions???