I have a 2017 Mercury 150 4-stroke, don’t have the serial number on me right now. Can anyone tell me how hard it is to install a smart craft gauge? My boat is a 2017 ranger Rt198p and I would like to install one. My dealer told me that it couldn’t be done, but I’m seeing more and more boats like mine having them. I have the VesselView mobile right now, but would like the additional info offered on the gauge. Thanks