Thanks Eddie for the referral as a sponsor. Much appreciated. Let me know if you need any thing for the Topaz. Would love to come see it sometime.
Rick, I've installed a bunch of Garmin's this past season. One in particular was a 741xs w/internal ant flush mounted in the port console on a 2013 23' Nautique wakeboard boat. It functioned as it should with no issues.
Another one was a Garmin 50S flush mounted in a 2000 SeaRay 210 dual console. Again no issues with the internal antenna. And the dashboard on this boat was an inch thick. Talk about over built? I've got some good pics of these jobs. I'll see if I can get them up.
Matt.