An installation of a high pressure air port gives you a possibility to connect anything you want, for example a tyre inflator gun.
Since I had the compressed air pressure line led through the engine space to the cabin gauge, it was easy to add a 3-way splitter to the air line, and an standard air quick-connector, that is accessible when the hood is open. This way the air port is in a place which does not get unreasonably dirty when driving.
If you look around the engine space, you will find a suitable place for the connector to attach. I used one of the screws that were near the fuse-box in the chassis part. I used a metal bracket to which I screwed together the air quick connector to a 6mm air pipe port with the bracket between the two, Than I attached the bracket to the chassis using an existing screw.
Now, attach a tyre inflation gun and enjoy pumping the tyres in the field with no pain.
