With the motor going back in soon, I'm starting fresh with the front-end harness in my 122 this spring... I've had nothing but troubles with the lights and indicators up front since I bought it.
Somehow, the horn was functioning when I yanked it, but looking at the remains of the harness now has me scratching my head as to how.
It seems that the relay was wired like this, with 12v supplied to the coil through the brown harness lead, and grounded through the horn ring at the steering wheel.
Does this look right to ya'll?