Where does the tach wire wire into the fuse box

[troy.70R/T]

I have a 70 charger and my car came with a tach originally but I think some wires may be mising from the tach. I have a new harness but want to make sure that I am not unhooking the original wiring and making a bigger problem for myself. So does anyone know where my tach wire should wire into the fuse block at? How many amp spot, what color should the wire be, is there a lable( radio?) on the fuse block where this should be piggy backed to? Thankyou AGAIN

[71_deputy]

gray wire from tach goes to the spade lug on tach

dark blue wire goes to the left side- acc. fuse

John Mac

[Neal_J]

Gray wire goes from tach to the coil, I believe.

Neal

[y3chargerrt]

Gray wire goes from tach to negative side of coil.

[Shakey]