I literally just ordered a möbius for my new whip about 30 minutes ago from here: http://www.carcamerashop.co.uk/mobius-action-camera-dash-cam-version.html You can add the hardwire kit or memory cards (looked a bit overpriced to me) to your purchase and they also preconfigured the firmware for dashcam mode, not essential but a small job saved.
As per above you can tuck it by hand, though a trim pry tool kit http://www.ebay.co.uk/itm/like/131794350416?lpid=122&chn=ps&adgroupid=40208335658&rlsatarget=pla-277438331693&adtype=pla&poi=&googleloc=1006532&device=t&campaignid=738217568&crdt=0&ul_ref=http%253A%252F%252Frover.ebay.com%252Frover%252F1%252F710-134428-41853-0%252F2%253Fmtid%253D1673%2526kwid%253D1%2526crlp%253D172723032140_563391%2526itemid%253D131794350416%2526targetid%253D277438331693%2526device%253Dt%2526mpre%253Dhttp%25253a%25252f%25252fwww.ebay.co.uk%25252fitm%25252flike%25252f131794350416%25253flpid%25253d122%252526chn%25253Dps%2526adtype%253Dpla%2526googleloc%253D1006532%2526poi%253D%2526campaignid%253D738217568%2526adgroupid%253D40208335658%2526rlsatarget%253Dpla-277438331693%2526gclid%253DCLPo6saw2NICFQuNGwodc1cIhQ%2526srcrot%253D710-134428-41853-0%2526rvr_id%253D1183270243039 is always handy for tucking things away and a trim tool kit is just a super useful thing to have in your locker, and great value, beats the rag and screwdriver approach every time. What can you even buy for £1.89 these days!
Mine in the Zed is adhered to the black/metalled area but points just below it, so it's very hard to see from outside especially in low light, I don't worry it makes the car a theft target. From there it still gets an unobstructed image, some minor adjust is probably required after you check you first test footage but it's easy enough to line up by eye due to the wide viewing angles.