if the wire needs to go to the front, where the input plug for the reverse camera is, then you need to feed the wire from the top hatch, into the rubber boot that goes from the hatch into the main body, pull the plastic trim from the side of D pillar, run the wire into the bottom of the trunk, from there get the wire into the bottom seat, feed it under rear door sill, into front door sill, and then you will be in the glove compartment area, from which you can feed the cable into the head unit.