Hi Monica.
No it's not a dumb question and the answer is:- yes of course.
Never understood the mentallity of spending loads of money on a reversing camera for the few seconds of actual reversing and then driving for thousands of miles forward without knowing whats behind you.
The only reason they are refered to as reversing canmeras is that (I'm going to get lynched here) the vast majority of people arn't interested in what is behind them and simply look at whats in front or beside.
If you fit a camera and screen that is only switched on when you select reverse. Then it will be a reversing camera.
If however you fit the same equipment but have it powered permanantly then it becomes a rear vision camera.
Had one for three years now and wouldn't tow without it.
Regards Brian...