I haven't hardwired a V1 on a Huracan. But on the Murci (and most other cars), you can run the wires under the headliner, down the a-pillar and into the fuse box. Generally, I get a 50ft section of telephone cord from amazon and trim it down for what I need.
FYI: green & black are your power and ground, may be reversed depending on which side of the cord you use.

I don't have the wiring diagram for the rear-view mirror, but that would be the easiest way to tap into power and not have to run much wire.