Where can I find it? Do I tap into the reverse light itself?

this is for an 04, give it a shot

Reverse Light lt. green + driver kick, harness to rear

I called Crutchfield and he told me it was the light green wire under the fuse box under the hood. Since the wires were wrapped up pretty snug in that area, I decided to go the the reverse light itself in the back of the truck. I traced the green wire from the light itself right where it comes through the grommet into the truck. It's easy to access too (it's under a panel where the jack is stored). When I install it this weekend, that is where I'm going to tap into the reverse lead. I'll then snake it to the front dash. Should be good to go from there.

Thanks for the help.