Read Leo2005's post regarding rear view mirror connectors:
connectors-close-to-rear-view-mirror-qu ... 01227.html
One of those wires is controlled by the door switch. Just use a voltmeter to confirm which one. I could not decipher the wiring diagrams as they color coded and the wiring in Leo's post is not. So no help regarding exactly which wire you need.
BTW it's not controlled directly by the door switch, rather the BCM (body computer) reads the door switch and remote key fob to determine if the dome lights should be on. This also means
DO NOT power your LED's directly from the door switch, it's a low voltage computer signal... not a 12V power source!