Robin, I fitted a Blackvue DR650 in mine with the rear camera fitted at the top centre of the glass. The cable was tucked under the head cloth along to the LHR roof pillar, down the back of the rear door weatherstrip and tucked in behind the trim on the B pillar, again tucked under the front door weatherstrip and then across to the underside of the dash. There is a panel below the glovebox that pops of easily and let's you get to the fuse box, although you need to be a double jointed contortionist to get your head in a position to see it. All in all, it's very easy and the only place you can see any of the cable is if you open the pax door fully and its visible for about an inch or two.