I appreciate your input. The only electronics is the Raymarine MFD and it's transom mount transducer which I am going to sell both. There is no radar, autopilot or any other network components...Before you spend a dime on garmin you might want to dig a little deeper into what equipment you have. Will the transducer you have work with the garmin, are you using the built in fish finder or do you have a separate sonar module? Do you have radar? Auto pilot? Will any of that work with the Garmin. What about the network it’s all connected too?