21-07-2013, 02:30 PM
Run a wire from one side of the switch to pin 86 on the relay.
Run a 12v feed to the other pin on the switch.
Run a 12v feed to pin 30 on the relay. Fuse this wire.
Run an earth wire to pin 85 on the relay.
Run a wire from pin 87 to the + (positive) connection on the air horn compressor.
And earth the - (negative) connection on the compressor.
Run a 12v feed to the other pin on the switch.
Run a 12v feed to pin 30 on the relay. Fuse this wire.
Run an earth wire to pin 85 on the relay.
Run a wire from pin 87 to the + (positive) connection on the air horn compressor.
And earth the - (negative) connection on the compressor.