2012 F150XA outboard Gauges

[slippery503]

I need to know what is the proper multifunction Tach to use with my new Yamahas. I am installing the engines and the gauges then taking the boat to my dealer for the initial startup and programing. Also what wiring harnesses do I need for for a 24' Grady

thanks

[boats.net]

The standard digital gauge is 6YR-W0035-E3-00 Multifunction Tach Rig kit, includes 23ft harness.
The Command Link tach kit is
6Y8-WE83S-70-00 Command Link square Tach kit or
6Y8-WE83R-60-00 Command Link round Tach kit
6Y8-82553-31-00 25ft Main Bus wire
6Y8-82521-21-00 3ft Pigtail Bus wire