On my 86 F150, the key was sticking and not returning to run position when released once started. So I took it apart and gave it a good cleaning. The key is now working good. I put everything back together and started to install the horn button, but I cannot remember how the black ground wire attaches. The yellow and blue one were not problem as their is only one way they could go on.
I have no idea where to attach the black ground, I did not take a picture before taking the wires off. I did with the rest of it, just not the horn button.
David,
1984 F150 LX, 4x4 117 wheel base, Engine Code "F" = 302, 5.0 2/B,
Transmission code "A" = 4sp manual New Process model 435
Axle code "19" = 3.55 (ford 8.8) manf. 08/1983, in Norfolk
DSO code "21" AtlantaFactory Air Conditioner, Dash with Gauges
1990 Goldwing 1500
1986 F150 XLT, short bed, 5.0 automatic
2004 F53 Fleetwood Terra motor home
2017 Chevrolet Traverse
Home town Viola Tennessee