Horn help please--1973 Options

[914xr75]

Hi everyone, I've gone through the horn posts and tried to do everything correctly, but I still cannot get my horn to work. I purchased the horn contact ring from Sierra Madre. I've added nylon insulated washers to the Batwing. I have switched out the relay from a working headlight. I have also put in a new fuse. When I touched the horn contact ring female spade terminal to the steering wheel nut I can hear something electrical making almost a clicking sound. When I check it with a meter I am getting 12 + volts when I touch the nut with the terminal.

I pulled the horn and checked it on a battery and it works. I sanded down the horn contacts and added dielectric grease. I am not an expert with the multimeter but I did hook up a negative and positive to the leads that connect to the horn and when I touch the nut I was getting a very small amount of current less than a half volt. I did drive it without the Batwing connected to the wire and the turn signals did not cancel. However they did not cancel before I got the new Sierra Madre contact ring. question about the area where the wire comes out of the steering wheel. Is the hole supposed to be on the top left side or the bottom right side? You'll see in the picture that mine comes out of the bottom right side.

When I purchased this car it had an aftermarket steering wheel. I bought a 914 wheel and batwing off of Craigslist and it fit. what am I doing wrong? Thanks in advance for any help you can give me.

[frostyf]

Right similar daft question and wasn't sure if I should have started a new thread but its largely a similar problem - I've got the same batwing fitting on a 73 2.0L (its actually a Nov 72, but the VIN is a 73);

Can I verify the switch 91434783201 is only for 72 and earlier?

Just want to treble check I'm not missing something obvious. The wire coming from the wheel fitting had tape wrapped around it and despite testing that against the batwing or wheel fittings I still can't get my pick n pull horns to sound (they've been back to backed against the battery and work fine direct).

Would you suggest its likely the horn relay??

Thanks
Nick