Hiding a dashcam cable is not a problem, just tuck it under the front of the headlining, then behind the top of the front pillar trim, then pull the door seal off the door frame to run the cable down to the lower dash board area and push the door seal back onto the door frame. The under dash board bit is easy. My satnav, (I prefer aftermarket ones) is attached to the centre divider of the centre vents.