Resoldered my headlight switch and GDM, touched up contacts in the VIC I have while I was at it. Seriously thinking about hacking this VIC in for cool factor. I have an Arduino Uno and it's super easy to write a program to make it mock up a 5V signal on up to 13 pins, plus a few analog outputs if necessary. I think I only need the coolant, washer fluid, and rear lamp sensor signals, so it should be super simple to get those up and running on the uno. If that's the case, I'll just have to get a head unit with a rear USB port and use that to power the uno, so I can have some fun VIC stuff.
That said, I don't know if it'll work without some other wiring stuff. Connectors are the same, but they appear to have different wires in them, according to a diagram I found.
1997 Grand Cherokee Orvis Edition
1998 Grand Cherokee 5.9 Limited
FUEL ECONOMY IS FOR LOSERS