Can anyone help me out here,; hooking up guages to my 67 and looking for help on which color wire to hook up the lamps for the guages to the headlight switch. There are several ones and the wiring diagram I have doesn't exactly explain which ones are which. I'm thinking it may be the light blue one but want some confirmation. Thanks.

On a '69, it is the gray wire. Don't know if it's the same for a '67 though.....

in 67 it is gray also

thanks guys