I have a MK ultrex I pilot with integrated gps system and sonar transducer. What hummingbird bird unit would match with it ? Thinking about helix 7 MSI, MDi, GPS .
I just recently bought a boat with 2 hummingbird graphs . The helix 7 gps gen 3 on the bow is broken. What is some good options to replace it without breaking the bank. I'm new to fishing with electronics. Can I just buy a gen 4 and plug and fish?
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