89 door wired into a 91 240

[lightningfish]

I'm wiring an 89 door into my 91 240sx, all the options and good stuff on either door are the same but I'm down to a few oddball wires that are not matching up. Left with two black on the door side and a green, a blue and 3 black on the car side. Everything works except the auto seatbelt. I can get it to move to the door open position if I piggy back it to one of the other blue wires but opening and closing the door does nothing. Couldn't find any posts addressing this.I already got rid of the old door(a guy who doesn't know how to work a slim jim did a number on it then broke the window) so I'm stuck trying to rig it up as is. Wondering if I can piggyback into the my "doors open" light on the one side? I found a wiring diagram for the 91 still looking for the 89. Any ideas would help.

Modified by lightningfish at 10:52 PM 1/26/2010
Modified by lightningfish at 8:30 AM 1/27/2010

[lightningfish]

So I got it to work....kinda. If I run the two blue wires coming from the car into the one blue from the door. Seat belt goes forward when car turns off, back when car comes on. Couldn't find my way into any switch involving the door, but it is functional enough to work.