I came in through the can vents on the back wall of the cab.How did you run the coax into the truck? Is there a punch out under the cab?
Mount your antenna. Get the wire into the bed. Under the bed rail there is openings that will allow you to pass the wire between the inner and outer bed panels and drop to the ground. Secure the wire.
Inside the truck flip back seat forward and remove the plastic panel and pull insulation back from lower corner to expose cab vent.
I used a coat hanger to push through the vent and directed it down to my antenna wire. Then use electrical tape to secure antenna wire to coat hanger and pull it through.
Sent from my Pixel 5 using Tapatalk