I have purchased a 2012 Ram 3500 ST with the basic features. I have added a RHB 430N radio that has navigation and Sirius. Everything works great so I wanted to add the backup camera to this, I have ordered the factory kit and I new that the truck would have to be flashed for this to work so I contacted my local dealer about this and have learned that since this truck has the EGR removed and has been flashed with a tuner that it is real risky to attempt to reflash to add the radio.. Has anyone else ran into this and have any suggestion on a fix for this. I really wanted the OEM backup camera system but don't want to risk damaging my truck .These mods where done before I purchased the truck and The programmer used was a Reaper brand if that helps. Thanks for any help in this matter.