Back camera for Hummer.

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I test drove an H2 with this setup. I recommend it highly. To address some of the questions based on what I saw, I test drove at night and it worked well, however car lights behind you glare a great deal and you can't make out the picture. I didn't find this too disconcerting, since you really just need to know if someone is behind you and what direction they are moving if they are trying to pass you, which this does. It appears to work superbly under normal light conditions. I was impressed with the clarity of images just a foot away, which is good for parking and backing up. Someone asked about mounting, and it appears that the monitor hangs off of a small bar that is fastened not on the windshield but the roof. Not clear how this is done, but I jiggled it and it was secure. The monitor is unobtrusive and you get used to it quickly, in case that's a concern. The monitor can manually be turned on and off, and can also be hooked up to turn on with the engine, or only when backing up, which are nice features. The camera plugs into the hitch lighting plug in the back, so I suppose it gets a "reverse" signal from there when you shift in reverse so it can turn on. The one concern I have and the dealer acknowledged is when you drive in the rain the camera will get covered and disrupts vision. I personally would rather place this inside behind the rear window and windshield wiper. Will also protect the camera from theft, as it appears one could pull the camera out of the hitch fairly easily.