Ah, car alarm places are a good idea. We have car stereo places, but I have not been impressed with their prices.
Does anyone know what to look to buy as far as a sensors? The best I can tell is that some cameras have G sensors, but that seems to mean it indicates when you have already hit something as opposed to when you are getting too close.
Also, does the camera just get installed on the back of your car? Seems like it could easily be damaged by weather or otherwise..what am I missing?