Just had my camera installed yesterday, Viofo A129 Duo Pro with the HK3 Hardwire Kit. I did quite a bit of research and for the price I don't think you'll find better. I had a shop professionally install it which cost $140 (I think that's high but it's a local place that was having some issues with the landlord/permits so I understand). Viofo also seems to release regular firmware updates and I had it up and running (with the app) in a few minutes.

here is the camera and here is the cable. The cable actually doesn't appear to come with fuse add-a-circuit adapters but those can be found at any auto shop. Its worth noting this cable has special functionality where it can send the state of the ignition to VIOFO cameras for switching to motion detection mode. The rear camera was a bit trickier but I managed to install that as well with only visible wires being at the top of the B pillar