Like our new 3.5 inch mirror monitor, this 4.3 is much different; Uses special glass to prevent UV rays and reflected light; The level of the mirror is really different and clear. It is really OK to use as a rearview mirror. Installation is easy as it does not require any modification. This quality is also available at a great value with square and round cameras. The monitor supports 2 inputs, so you can also connect it to a one-seg tuner or DVD in addition to the rear camera input. You can actually know where the 4.3-inch monitor frame is placed.