If you are running coax to the aft of the boat, there are 2, 1 1/2" pvc tubes that run from the hanging locker in the forward cabin under the Bose unit to the wiring access panel under the navigation station. You will have to remove the cedar panel from the hanging locker and the teak wood panel mounted vertically under the navigation station. It can help to find the pvc tubes by following the red & yellow 2 Gauge wires for the windlass. From the access panel under the navigation station you will have to bring the coax down under the floor to get further aft in the boat.