Eh? I replaced the sole remaining stock trumpet on my '77 when it died with a pair of 993 horns (lighter, cheaper, sound nice), including fitting a bracket and a short conversion harness (the 993 horns have a waterproof connector instead of spades) working between the wheel and the fender by turning the steering to about 1/3 left lock while parked. Took about 20 minutes. Loadsa room.