Thank you very much
Thank you very muchThe horn(2) are mounted behind the grille. The bracket bolts to the hood latch plate between the radiator and grille.
Hopefully you can see the diagram. It's the horn circuit. This came from the '79 manual but far as I know, '80 is the same. Maybe you can download and enlarge it. If not, wire color from the column to the relay, in the fuse/relay panel, is black. Relay to the horn is green with red stripe.View attachment 36167
Except that your '80 BOOK is a heck of lot easier to see than my '79 photo of the monitor screen.