Great guide, I used this with post from others to hardwire my Passport MAX radar detector
Just some clarification for those FR-S users that don't have the auto dimming mirror or even if you do, you can make the connections on the male (car side) and not the mirror side.
I bought my direct wire cable from ebay for $8.95 with inline fuse
http://www.ebay.com/itm/Escort-Radar...item2c7252d817
find the mirror connection cable to right once you remove the light housing
mine was taped down (I guess to prevent noise)
turn the now loose mirror cable so that the gray wire is on the left...
feed the red wire into the left slot where the gray wire is... feed the black wire from the direct wire cable into the middle slot of the mirror power where the black wire is.
When you feed the wires in depending on how you do this they should be snug so it may take a few attempts.
I secured it using a rubber band, you might want to use a small tie wrap or electrical tape. That way when you tug on the cord when moving your radar connector these connections won't come loose.
Result:
