Originally Posted by coyote_94yj
I'm 99.9999% certain that the 6 pin connector sitting there is your OBD1 connector. It is used for scanning your ECU for codes and other diagnostic stuff.
The other 2 pin connector I have no idea. Probably was for an option that wasn't installed on your specific jeep. The AC compressor would have only 1 wire going to it to trigger the clutch.
that is your obd1 connector.
as for your horn, you always gotta start at the basics, the fuses, since you said no power going to horn when button is pushed.
i agree with hightechredneck, all you need is power supplied, and a clean ground to make contact when you push horn.