I cannot work out is wrong with this.
I've got these horns which work (tested on the battery)
https://www.ebay.co.uk/itm/221749970828
They have been connected with the oem horn wiring and they have been grounded at the front.
I've got a HKB boss and an NRG thin snap off hub. From the steering wheel it has been grounded and the positive connects to a green cable if I remember right.
Even with the resistor the air bag is still on and the horn doesn't work. Tried the oem horns to see if it would make a difference and it didn't.
I've looked on You Tube and found a thread on here which sounded similar but they had different wiring so it unfortunately didn't help.
Any information would be appreciated!!!