Yeah, you need to ideally make a hole with a screw driver through the rubber gromit in the passenger footwell. Then attach the power cable to the screw driver and push it through from inside the car. Top right of the engine there's the power steering fluid bottle that unclips. You can then get behind the carpet stuff at the back of the engine and feel down for the cable and bring it up, connect to the battery and you're done. It's a bit fiddly and takes a while, but it should be okay.