Hi Kimbie,
KCS have had the following to say about fitting a dashcam
Thanks for posting.
We can confirm if you do decide to fit a dash-cam to your car it won't invalidate your warranty. However, if you were to experience an issue that could be attributed to the dash-cam being equipped - this would not be covered by warranty.<br style=": rgb251, 251, 253; font-family: sans-serif, Arial, Verdana, "Trebuchet MS"; font-size: 13px; line-height: 20px;"><br style=": rgb251, 251, 253; font-family: sans-serif, Arial, Verdana, "Trebuchet MS"; font-size: 13px; line-height: 20px;">We hope this information has helped. If there's anything else we can do for you please feel free to get in touch.
http://www.kiaownersclub.co.uk/forum/dashcam_topic25911.html
For 'hardwiring' I'd personally go no further than using a piggy-back fuse in the accessory socket of the fusebox - Certainly don't go chopping any wires!
Edited by: Sportidge