Mounting a portable Nav unit

Has anyone installed a nav unit in the storage box at the bottom of the stack?
If so, any problems getting a signal?

 

Why do you want it that low?? That is WAY outta the normal scan/vision range for driving- means you spend seconds with your eyes down off the road.

(Sorry...Pilot in me talking- We try to keep eyes looking out as much as possible. It's just an opinion- Take it for what you will.)

I've got mine in the upper most left corner of the window so i can look up at it and still see motion out side the car. It does not block any important vision fields, it is not RIGHT in your face all the time, and you can run a permanent power cable up the door pillar and leave it there.

 

i'd rather have it not blocking my vison out the windshield.
that's what the voice commands are for.
Besides, I hate the look of stuff hanging from the windshield (i.e 80's radar detector look), and less chance of someone breaking into the truck to steal it.