bronco wiring - mystery plug

[broncoray]

Bought a 1970 bronco with an 1985 block crate motor.


Had a 1977 wiring harness and about a foot back from the battery and
voltage regulator is this plug.

anybody know what it plugs into?

Thanks.

 

[Slowleak]

That’s for the horn relay. A ‘70 would not have one.

 

[Steve83]

This shows '77 wiring with connector faces & locations:


(phone app link)

Read the caption.

 

[bronkenn]

Bought a 1970 bronco with an 1985 block crate motor.


Had a 1977 wiring harness and about a foot back from the battery and
voltage regulator is this plug.

anybody know what it plugs into?

Thanks.

Don't know about the plug but I do like the Boxwood Green Bronco. Ken

 

[broncoray]

Thanks for the help guys...

wiring diagram is awesome...

Ray