^^^ This. It's easy with a 1995+ SC.
OP, you'll want to order two connectors from Toyota/Lexus: 90980-11156
The electrical probes they require are harder to identify by P/N but if you have made a habit of keeping random old unused Lexus electrical bits you can probably find the right ones to cannibalize. The only thing you'll be missing is the factory rubber seals on the OEM wires/probes.
See this thread: http://www.clublexus.com/forums/sc-4...-fogs-diy.html
And this: http://www.clublexus.com/forums/sc-4...connector.html