Being FMIC'd on my 05 sti, I had an open line where the I/C spray water would come out for the TMIC setup. I ran a line down the side of the fender into the front bumper. Snagged some windshield washer spray nozzles at the junkyard, as well as a "Y" splitter and put in the end of the line. Viola! Cheap, and functional FMIC spray setup.
In the pictures I pulled them out of the mounting spot so you can see them better. I was able to get them tucked behind the license plate mounting area, so they are hidden normally.
The spray is a little "weak" as the water has to travel from the resovoir in the trunk, to the front of the car, down into the bumper and out of two nozzles. It sprays a little better out of just one sprayer, more of a trickle with both, but when driving it goes onto the fmic.