i know several have installed garage lifts for storage, and i have seen some say that they have to back in the top car. i just put one in, and also have to back in the Viper to get clearance. My question is, those that back in, have you put up some type of mirror in the garage, to assist with the back-in, and if so, what kind, how big, and where in the garage did you end up putting it for best results? ( ie. corner of wall, directly behind car, etc..) also, where did you buy it? thanks for the assist.