I think some of the newer ones have different pin numbers like my 550c on the little boat. They should have an adapter cable anyway.
No transducer yet for this boat but I have to buy it anyway. Actually might end up using the 740s for radar, GPS and engine monitoring and buy a Furuno fishfinder down the road with a 1000 watt duecer. The 740s should be plenty good to get my by for a while. I really like having the finder separate but the screen is big enough to have nav on split screen.
This is great, thanks!
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