Car wont start unless door is open

OK. You can still check the battery voltage with key in run.
We can assume for now that the current is around 5amps.

Interesting development. Someone mentioned to hotwire the coil stright to the battery. This kinda fixed it. when coil positive is hotwired, the car will idle.

However when i went to shut it down, key was off and car ran for an extra 5 seconds.

This means the ignition wire to the coil plays some role in the problem.