Cell booster antennae mount on bed rail. Thru cab access?

I want to mount a cell booster on my bed rail channel. Is there an access port between the bad and bed to run the antennae wire back into the cab?

 

There are several decent-sized plugs on the floor you could go thru..

This is my 2014 but I'm sure the Gen 3 would have some as well..
There are a few in front of the front seat.

 

was hoping for something easily accessible without removing carpet and seats...

 

You can access the ones in front without removing anything but the door threshold.
Pull your door thresholds and reach under the carpet..
I had to do it for my Amp steps and bed lights..

 

Yes under the passengers side back seat there is a wire pass through. You have to pull off the panels. Pretty easy to do.