I plan to mount the HB AS-GPS-HS over the top of the ducer if there is no magnetic interference present which is located on its own downrod at the front next to the TM. That said this won't matter that much since they will be only about 2ft apart but since my Ultera-TM has its own gps with i-pilot link when I select any of the functions like the "Go TO" waypoint will the coridance still be from the TM-gps or the external gps?

