How can I rewire the electronics in my door to the car?

There may not be a specific plug-in adapter per se, but you could splice wires and use universal connectors, check out radio shacks electrical components section or most auto parts stores electrical components. You don't need to know how to solder to make these connections. Do not cut up or splice your car's original harness, instead make up a short adapter with whatever connectors work, and use that to plug between door and your car's harness.