Hey all. I am looking for some help on how to wire a radar detector so that it is powered on while the truck is on. ('06 F150)

I was thinking about running the wire from the detector through the junk tray on top of the dash and in behind were the radio sits. Is there some way I would be able to wire the detector to the radio itself, or do I have to find somewhere else to do it?
I am not real electrical savvy, but I would be able to spice wires and whatnot.

Any help is appreciated.

 

I used an add a fuse that cost me $13. Fits in any fuse slot in the fuse box you want and then has a separate fuse with a wire and connector that piggy backs it. Makes adding electronics so easy. Used it for my radar detector and sattelite radio. Run the wire between the dash and windshield and then down into the fuse panel on the passenger side. I like add a fuse as you don't have to splice into factory wiring.