Thanks.....I will check. All my boating will be in the US, but I would be surprised if it is different.

Take the compass out and fabricate a disc out of marine board or similar that is larger than the hole. Do a little grinding of the fiberglass under the dash and Epoxy the disc to the underside. Brush on thin epoxy on top side to waterproof. Make another disc out of abs or acrylic plastic the same size as the hole. Try to pick one the same thickness as your dash. Paint it silver. If its a little thin shim it with stainless washers till it looks flush. Use a ram mount base and through bolt it through the plastic and marine board. It may not look perfect depending on your skill set but is totally reversible if you change your mind.
http://www.rammount.com/part/RAM-D-111U-C
Lots of mounts to choose from

Chris

I just went and got the old compass out and it is a 4" hole. I will get some stuff turned out of aluminum, powder coat and then mount it. Look like it will be a great improvement, and as said, it totally reversible if things change.

Never posted how this turned out. Turned out to work very well. Here it is

is[ATTACH=CONFIG]565837[/ATTACH]

How do you see out the windshield ?

Padraig

I am 6' 1" and rarely sit down when driving.

Should work fine then. Definitely not a lot of options for mounting.

Padraig

That looks awesome. What GPS did you go with? I'm looking to do this exact thing to my new 353. Hoping to fit the Garmin 742xs

It is a 741. Copied the base in billet aluminum and then made a small base to mount the GPS bracket to it(if you zoom in on the picture, you can see this). Polished it all, clear coated it and then installed it. It looks very nice. It looks like it sticks up, but when the cockpit cover is on it, it clears fine.

It looks awesome and that's the same size as what i'm looking for. How do you like the operation of the Garmin?