I have a long car, Ford Flex. While routing my rear camera around and behind things, I found I was about 6-8 feet short from the end. I did have to route it, in a roundabout way, to keep it hidden, but as is, I can't reach the back. I do see that there is a USB end and a round end. Would it be possible to use a standard USB extension wire to get me connected, or will that cause the camera not to work? If not are plug in extender cords available?