Digital speedo wiring question

[hookemup29]

Do the Yamaha digital speedo gauges require their own special wiring harnass or can it be plugged into the extra sockets coming off of the tachometer harnass?
Do I need additional sensors for fuel level and volt meter or will it function after I connect to the tach harnass?

Thanks

[jb123]

no extra harness, just hook color to color off tach/power harness, for gas level use white or white/blu stripe.. for lights use the blu(light circuit) and blk (gnd)on the side