Indicaters plus horn not working

My lights weren’t even wired through a fuze. Do the hazards work? Could the indicator relay be 1 problem and the horn separate problem. If you put a temporary neutral on horn to battery will it work? How easy would it be to individually fuze things. I did this A0C80C0A-9116-4363-8CD4-B695834E7095.jpeg 1972so had 2 fuses originally.
 
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