Hard wiring

[rosie5golf]

Hi,
Has anyone got any idea where and how I hardwire a dash cam in my e320 ?
I'm fed up with having to use the 12v socket in the front of the car and wires trailing all over the place.
I've seen somewhere a piggy back wire that plugs into the fuse box, can anyone help please ?

 

[Cymruambyth]

Why not use an auto electrician? That`s what I did. He hard wired my dash cam and camera detector and charged £36. Less hassle.