All 4 drains checked. The rear two are accessible by loosening the headliner at the rear. You can work from the rear door area to snip the plastic tie and pull off the flexible tube that connects to the sun roof drains. Once again no indication of clogs. I can find were the two rear come out, but I can try some water and see where it drains.
For the two fron drains, I have heard all sorts of exist points, but I found them, DUh!
The front drains exit right inside the door area between the two hindges. There is a black flexible conduit for all the electrical and right behind that is a black tube with a 90 degree bend downward. One on each front door. So no mystery no more on the front ones.