I have a 2007 310 Sea Ray Sundancer with factory installed trim tabs. HIN SERT9863A70731ODA1329 with v drive, and 2 350 Engines. I have a Garmin GPS Map 7600 installed and a Mercruiser Vessel View 7 installed. There are trim tab switches on the dash but no indicators. What do you have available to add a visible indicator on the dash? Given my electronics is the NMEA route the easiest? What is recommended for upgrading the factory installed trim tabs to a larger size. I have read that the factory tabs are on the small size. Thanks in advance.