R33 Horn wiring

[RB_purr]

R33 Horn wiring

96 R33 gtst S2 

G'day could someone please shed some light on how to wire up the 33 horn on an aftermarket wheel 

I have searched absolutely everywhere and have found nothing helpful at all I understand how to connect it but I can't seem to get any response from any of the wires 

For starters the horns work when I put a feed directly through them.

i have replaced the relay

i have changed the fuse to rule that out also and I have tried testing different wires and earthing wires out which i understand the horn works when earth contact is made 

I have 2 wires on a block connector which I know are for airbags then I have 3 wires which have been cut being blue red and yellow (photos below) and I have tried multiple connections and I can't get anything out of it..

 

i have the whole column apart and I can see the wires that would run through to the factory wheel but Im having a real crap time 

can somebody point me in the right direction 

[89CAL]

Horn works all the time, So ground each wire individually with the car off. Horn should go off when the wire is grounded.

If it doesn't, you may have a wiring issue (if you have already checked the fuse and the relay)

I have a wiring diagram for it but cant upload images at the moment for some reason

[RB_purr]

I have tried grounding each wire individually but it's not having a bar of it I'm thinking of just getting a whole new column tbh to rule out any wires that might be broken etc etc 

frustrating to say the least wiring is a bitch 

[89CAL]

Got a multimeter?