I have literally got a headache from trying to find the head unit I want for my SRT8. It came with a single disc tuner from factory, no VES or anything. I want a unit that will enable me with navigation, rear backup camera, touch screen capabilities as well as video in motion. I know I need the lockpick for the VIM and the rear camera. But there are RER, REN, REC, REU. I got tired of looking on E*ay. I wanted to ask you guys what it will take to work.