Multi function tach

Just purcahsed a Sea Hunt 200 w/ F150 (2008). The only gauges that came on the boat were speed, tach, voltage and fuel. I would like to add trim and hour meter. There isn't a lot of room left on the dask so I was consdering the multifunction tach. Does anyone now if this "plug and play" gauge or would I need to install sending units or something on the OB.

Thanks

[jb123]

all larger motors are gauge ready, you will just need the harness to connect and you will find the best new prices here.
Are the existing ones yamaha gauges? if so, you MAY already have the harnesses.

[boats.net]

6YR-W0035-E2-00 Multifunction gauge kit(includes harness) will connect to 4 prong connector on engine and will give you tach, trim, and hour meter.