My 2006 Hunter 38 came with Raymarine instruments. I am considering buying the new Garmin GPSMAP 743xsv multi-function display (MFD) in order to get Garmin’s forward-looking sonar (can you imagine seeing that shallow spot coming at you well in advance?). My question is whether anyone has had success mixing two manufactures? Garmin says they can’t guarantee that all functions of the Raymarine instruments will operate properly on their MFD. Has anyone been successful mixing two manufactures?