Just cut the cable myself and only had to drill a 10mm hole and then used a wire connector for added safety. I'm a DIY novice and was a little nervous but can confirm it works. Be careful with the video and audio wires as there thinner so easier to cut altogether when you just want to peel back the plastic insulating. image before I put the connector in the box that came with it, which I then screwed to the wall (98p from Screwfix). I've tweeted Nest with the issue, hopefully they'll start to offer two cables in the future.