HELP A.S.A.P---->tach installation...

im in the middle of installing my AUTOMETER tach. I connected the green wire to my coil, then I connected the black wire to ground.
....my question is where do i connect the red and white wire??


read the instructions...

green - tach sender
black - ground
red - power
white - gauge light power (off the light switch)

I believe those are correct.