I just received the Navpod enclosure I ordered for my Garmin 3210 and it is the wrong one. It is a Grand Prix power pod and it has a swivel base with a large round mounting hole. It looks like it is meant for an overhead mount or a flat surface mount. Neither of which I have on my 1995 Hunter 40.5. I have, I think, a 9.5 pedestal guard that you can see in the attached picture. I tried looking at Navpod online and I cannot figure out which one I need. If anyone has any ideas, I'd be really grateful.