94 grand caravan 3.3 automatic 2wd ignition went bad so i tore most of it out now i turn whats left with a screw driver and have to jump the starter with a screw driver. i called Crysler and they said $140 for just the tumbler mechanism no thanks. so i went to the junk yard and i found another ignition with a key.G od must have been paying attention for once ? what were the chances with a key. i dont see how the mechanical part can be replaced separately ? the wires are the same color but one wire isnt there on the ignition i found at the junk yard and the numbers dont match. so what i need to know is ? how important is it that the numbers match ? do

need to get a wiring diagram for the vehicle from the junk yard and see if the wires go to the same places as on my vehicle ? thanks all.