Blowing interior light fuse - drivers door

[Mozzie]

I recently had my sunroof replaced due to the back section getting stuck up. Since I have had the car back, the 20A fuse for the interior lights keeps blowing when I open the drivers door. All other doors are OK, which is strange.

Any thoughts on where to start to fix the problem? I though maybe the door switch was shorting out, but I can't even find where it is (i.e. the switch that tells the light to come on when the door opens).

Thanks for any advice...

New info... Just checked and fuse is blowing with rear doors as well. Seems that only the Passenger does not blow the fuse when opened. Now I am very confused