I took my own advice and did a "search" and also found this:
http://www.dfwsbr.com/crossfire/faq/radar/

Also from "Midnightman" 8/7/06 posting....
The fuse panel on the driver's side only serves items that receive power when the lights are on. I wanted to use one of those for my sirius radio but none had power when the headlights were off.



I was trying these fuses and had even turned the lights on but I probably didn't have a good ground.