greddy oil pressure gauge help

[delsol8017]

i got my gauge about a month or so ago and i'm finally gettin around to install it, but the directions are all in japanese. all i need is the wiring diagram if anyone has a link or knows where to run the 4 wires. everything else, i'm good. just need the damn diagram

 

[delsol8017]

ok, i got it grounded and the main power to work but i can't figure out the light for it