I'm doing an OBD2 swap in my rabbit as well. I'm using all the wires off the donor car from engine compartment wires to fuse box and interior wires...
I haven't had time to figure it out cause it's winter now and the car is in storage so I can't play with it anymore till spring.
Left over plugs for 1997-1998 2.0L 8v
Turn Signal Harness
Yellow Plug: Yellow/Light Blue = ?
Black Plug: Black/Blue, Blue, Red/Yellow, Black = ?
Harness E Green Colour: Red/Yellow, Red/Black = ?
Brown Plug: Brown/Green to Big yellow Plug = Air Bag ?
White Plug: Brown/Red = ?
Blue Plug: Red wire = ?
Brown Plug: Brown wire = ?
Brown Plug: Brown/White, Grey/Green = ?
Black Plug: Red/White = ?
Black Plug: Black wire = ?
Light Grey Plug: Yellow, Grey/White = ?
Blue Plug: Blue/White = ?
Yellow Plug: Black/grey = ?
Green Plug: Red, Red/White = ?
I was told that a few of the wires needed to be spliced together but i couldn't understand why unless a module or soemthing was missing...
[Modified by GTI_Andy, 6:56 PM 12-11-2002]