Looking for a wire to tap into for power

[bwbski26]

I need to find a wire, preferable one by the fuse box by the left foot in the drivers side area. i need one that is power on while car is on and off when car is off. it is to run my hard wired radar detector. i think a good one would be the cigerete lighter wire. just need help figureing out what is what down there. thanks,
brad

 

[mobi-arc]

I tapped a wire in the overhead sunroof controller pod thingy for my radar detector.

 

[bwbski26]

do u know what wire it was? what color and what it was in charge of powering?
and what did you ground to up there?

 

[mobi-arc]

http://www.perfectswitch.com/gps2.jpg
http://www.perfectswitch.com/gps3.jpg