Magnum swap EFI wiring
I saw a new one recently- before the latest non-alarm I'd seen was an '04 Dakota 3.7 and pretty sure the '06 Durango 3.7 I saw didn't have it. SKIM has the thumbprint key.
Yeah, you can upgrade to OBD-II later. You may even be able to keep many of your sensors, looks like there was more interchange with OBD-Is and '96s than there was with many of the later years.