Remembered this thread, and decided to do a little digging since I have time at work. From the couple of Delphi/AC Delco connector websites I found, I couldn't find any unsealed, 2 pin, female connectors that matched what could mate with the 194 bulb holder.
Trying to think outside the box, the sockets that would plug into it sorta look like a Molex configuration. Found part number for the Micro-Fit 3.0 connector,
43645-0200, that looks pretty close. The configuration is right, I'm just not sure if the pins are far enough apart. It's also possible that the latch on top doesn't have the right sized hook to clip onto the bulb holder, but in the end, that might not matter.
I found these listed on Mouser for $.32, although you'd have to buy the associated pins P/Ns
43030, or
45773. Those look to be about $.11 each on Mouser. I considered buying one to test with, and a pair of pins as the cost would only be $.52, but then the shipping is $4.99.
http://www.mouser.com/Search/Produc...200virtualkey53810000virtualkey538-43645-0200
http://www.mouser.com/Search/Produc...051virtualkey53810000virtualkey538-43030-0051
Maybe when I need to get some other components for a new project that will stall out on itself, I'll remember this, if no one else decides to try it first.