OK, for those interested in maybe doing an LED swap on the xD door sills, here's a couple pics of the door sill circuit boards, removed from the sills - There are two surface-mount right-angle LEDs soldered to each board, one at either end of the SCION window, with the element shining horizontally facing towards each other... so it would just be a matter of unsoldering and re-soldering some small LEDs... you probably could get away with using small round LEDs with leads, the leads cut real short and bent at right-angles, and just aim them horizontally as well...
Notice one surface-mount LED is broke off and missing on the wired end of the one board - Hey Keelie, you sold me defective sills, lol! Doesn't matter, since I'll hopefully be replacing all the LEDs with some brighter ones anyway...
