Relay and needed wiring to operate the horns using positive current (instead of the original Guzzi handlebar switch that provided the ground for the horns).

Relay and needed wiring to operate the horns using positive current (instead of the original Guzzi handlebar switch that provided the ground for the horns).

The Domino handlebar switch actuates the horns using positive current whereas the original Guzzi switch actuated the horn by providing a ground. This sub-harness adds a new relay and provides the necessary wiring to actuate the horns.

Installation instructions:

1. You *may* need to remove the fuel tank to gain access to the wiring. Please let me know if you do or do not need to remove it to gain access and I will update these instructions accordingly.
2. Disconnect the existing brown and gray/black wires from the horn.
3. Connect the existing gray/black wire that you just disconnected to the new white/red wire.
4. The existing brown wire will no longer be used. Tuck it away such that the terminal will not make contact with anything else.
5. Connect the new black and gray/black wires to the horn.
6. Connect the new black wire with a ring terminal to ground.