I saw that video on Youtube too, but the Yahoo Auction link was dead.There's a YouTuber that installed a higher res camera and it worked. The frame rate is dependent on the head units processor but the image quality depends on the camera itself.
I think that yahoo auction was for the camera and the fitment adapter. But any camera should work you'd just have to figure out how to properly mount it.I saw that video on Youtube too, but the Yahoo Auction link was dead.