[HerrOtto]

Bhc41051, thank you for the schematic. I did not see a hole for the light socket near or in the heater controls. In addition, your schematic shows the wire going to an accessory fuse panel which I do not have. Who really knows, with a truck this old and so many previous owners, the wiring and mechanicals may have changed numerous times. I think at this point I will tap into my after market turn signal wiring and add my own turn signal indicators.

Thanks again