I have NMEA 2000 and Mercury Smartcraft Vessel View Link. They market a mobile version of the Link system that uses your smart phone for the interface also but I opted to get the stand alone system that uses a Chart plotter/fish finder. The reason I got it is so when I change motors or boat it's pretty much a snap to transfer the system. No more analog or electronic gages taking up room in my console, less wiring, etc.. I will tell you one thing with the system I have and it probably applies to yours as well is that a lot of the interface will depend on the size of the engine you have. My engine is a 40 horse and it's the smallest one that the VVL supports. Depending on the specific engine, it will show more data on specific sizes. For example lets say mine won't show engine oil pressure or oil temperature but a 90 hp will. There are differences between engine groups on what is and isn't able to be displayed. Your fish finder will probably show water temp and speed over ground. Don't confuse that with an actual engine system. All the NMEA does is transfer data between the engine and the plotter. The actual systems for the engines themselves will transfer the engine specific data via the cable that runs from the engine and the remote shifter. My system employs a box (the Vessel View Link) that interprets the engine data and converts it to data that can be transmitted over the NMEA 2000 to the fish finder in a format that it can display. I was told by a "guru" on this stuff that my display wouldn't work but he was wrong in my instance.