factory horn in mitsubishi won't work

I have a 2002 Mistubishi Diamante.  The horn will not work.  I tested it with a direct battery connect and it did work.  Fuse in the passenger compartment is good.  Relay clicks when the horn is pushed.  I replaced the relay with other ones from panel with the same result - relay clicking, but no horn function.  I think one of the relay connections is to ground based on a continuity check.  The horn is on the opposite side of the car from the relay.  One of the wires at the horn has continuity back to the grounded relay terminal.  The other horn wire does not have continuity to any of the four terminals on the horn relay.  Is a wire broken, or should I expect the other wire at the horn to go somewhere other than the horn relay terminals?

Can anyone help me?  Can you suggest other things to look at?

Thanks,

Rob

One wire at the horn is connected to ground.  I can't trace the other wire back to find out where it goes.  The car was in a minor accident that damaged the right front bumper.  I have a friend with his own dealer license.  He bought the car for me at an extremely good price at the auto auction due to the damage.  My friend fixed the cosmetic damage before selling the car to me.

Everything works in the car except the horn.  Maybe someone could tell me which wire from the relay should go to the horn.  Perhaps I just have a broken wire.  I don't understand relays that much.  Using a voltmeter, I see that one of the relay terminals is normally at 12V.  When I press the horn on the steering wheel, this terminal voltage goes to zero..

Thanks,

Rob

It sounds like there is a wire not hooked up properly, either at the relay, or not makeing a complete circuit (going open or to ground). In your first post you said you have continuity in the line between the horn and the relay, is this the case? Check this wire, it sounds like the guilty party.