wire for light for ac/heater control switch

[hrascoll]

67 Camaro rs/ss with factory a/c.  what color is the wire for the ac/heater control switch? aim shows where to install but I do not see the color of the wire or where it comes from. thx

[Petes L48]

Here's the sheet (pdf file below) from my reprinted 67 wiring diagram.

[hrascoll]

sorry I missed a key word to my post "light". it is the light that installs into the switch. I am looking for the color of the wire for the light. thx

[Petes L48]

Here's the diagram for instrument panel and cluster.  I think you want the "Heat Control Light" near the top right, gray wire.  See attached file below for diagram