the camera i installed is capable of being installed inside the emblem too, take off the emblem, in corolla its held by a few clips i don't know about honda, and insert it from the back and either screw or attach it to the plastic where the emblem clips on and clip back the emblem it will pop form centre of the logo, no problem with honda, problem with toyota emblem is that the hole in the centre is not big enough for camera so you need either a camera with a plastic surround like in above pics, or mount it in the right or left hole inside the emblem and not centre,
but for best view and functionality its better to mount it in the bumper, it will be more discreet and less chance to get stolen too