Im looking to add a back up camera to my 06 rrs since the one I got didnt have one and from what I have read the only option is aftermarket. Has one tried the nav video unit before? I have also found one on ebay auction # 380195018315 both seem the same just the one on ebay is cheaper or appears to be cheaper. Whats everyones feedback and how close to factory are these or does anyone know of anything else out there. Thanks for everyones help.