What are you trying to do? Use the two wire Swift horn in the Jimny? Connect the Jimny wire to one of the terminals on the Swift horn and wire the other terminal to ground.
The one wire horn can also be used in place of the two wire horn, if you know what you're doing. This MAY require a relay and some additional wiring, so unless you have a specific reason for doing it, it'll probably be more cost effective to simply get the correct horn - I really don't see anyone wanting to use a Jminy horn in any other vehicle - it's the most anemic sounding horn I've ever heard on a new vehicle.
The Screaming Banshee is the loudest and best engineered motorcycle horn you can buy, in fact it's much more than a loud horn – it's a proven safety system that has helped thousands of motorcyclists be heard and seen when it matters most - saving lives in the process.