Just followed your steps and sorted a really annoying loss of connectivity issue. Note: if you fold the rear seats down, then fold the trunk floor forward (over the rear seats) I found it much easier to reach the TCAM battery from the rear seats
So I watched this video again and you really should upload more of your volvo and Kia vids. You do great do it yourself videos. Anyone with basic tool and car knowledge could follow. Maybe you should do a series on basic Maintenance for ev and gas vehicles.
