Tach and gauges?

[Bootzz]

Im looking to get an aftetmarkey tack to put in my truck since mine doesnt work.
I kmow i cant get a reg tach so where do i get one?
Also i bought some sunpro gauges from advanced and wondering how do i hook them up
Its 3 gauges
Temp, oil pressure and voltage
Can anyone give me a walk thru?
I searched amd nothing was real clear

 

[Devon Harley]

you hook water temp on front of drivers head oil pressure above the oil filter