[Clampadis]

Has someone installed MiVue Smartbox on i30 1.0T-GDi 120CP 5DR Launch Edition HIGHWAY? 
How can I connect the MiVue Smartbox to the fuse box?

[mrpayner]

Is that the fuse box under the hood in the engine bay? or the one located inside the cabin?

Ideally, find a circuit that provides constant power even when the ignition/accessories are turned off..

[The Gonz]

 

The picture of your fuses doesn't tell us which ones are battery fed.

Once you find one that is (has 12V when the ignition is off) tap* it's high side (the contact that has the 12V with the fuse removed.

Don't you have the instructions in the box?

* connect your UPS red wire to it and the black to a ground point. Pretty sure the yellow should tap an ignition-fed contact.