I am upgrading the electronics on my '86 Ericson 30+. Currently have an old set of datamarine instruments (depth, speed, wind), which don't work properly. Also have a functioning Raymarine Autopilot with X-5 computer. I'd like to replace wind, speed, depth in a way that can interface with the...

Garmin Montana 600 has USB interfacing for PC based navigation software. I can't figure out the settings for Polar View NV (trial ver) to talk to the GPS unit. Is there anyone else using a Garmin and Polar View? Any help would be appreciated. Thanks David

As part of my outfitting my boat a contest 30 i decided to buy an old cheap radar so i found a autohelm st50 dome for 200 bucks which seemed pretty chea but it didnt include a screen or a cable. Now my question is how do i find those things and do i need an st50 screen or can i use a different...