I wired mine into the overhead console. Used a multi meter and mounted it on top of the rear view mirror.Like others that have their detectors mounted with out the cord showing.It's under the factory tint line but its very close. The nice part is it is hard to notice outside the truck.
Which color wires did you tap into on the mirror plug for hot (engine running) and ground? I don't have a volt/ohm meter. :4-dontknow: