I would go with a single all in one unit like a ray garmin or simrad and get the largest screen you can afford and make it fit.
I was this close to replacing all my electronics with simrad dual screen system but I am having second thoughts now. many of the other makers have machted the features and some are better. I thought simard had the best ff but now I like the ray and the new garmin even better and it is less $. It is hard to keep up. I don't know what to do now. Still using my 8 year old system that works fine. But I want chirp and I want 4g radar and I would like sidescan.
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