remote central locking, 1992 calibra

hello can any one help me with this problem i have been trying to fit after market alarm to my 1992 calibra the problem i got is the central  locking system i have got it to locking but cant get it to unlock ,i have six wires on my alarm wiring for the central locking they are has follows.

orange wire (no)

white wire (c)

yellow wire (nc)

orange and black wire (no1)

white and black wire (c1)

yellow and black wire (nc1)

can any tell which wires go were the car central system thanks

Should be NEGATIVE Pulse

orange wire (no)                           = GROUND

yellow wire (nc)                              = N / A

orange and black wire (no1)      = GROUND

white and black wire (c1)            = LOCK? wire in vehicle

yellow and black wire (nc1)       = N / A