Our Trawler had major upgrades in 2005. At that time she received state of the art electronics. But today, those electronics are dated. With the removal of the fly bridge when she came up from Tennessee, the wiring was in quite a state. I have slowly been removing old electronics and making way for the core NMEA 2000 based system. My first component is a garmin 7607xsv.
In addition, I will use the two Raymarine radios that seem to be ok. In Addition, I got the ST50 depth sounder to work.