I frequently travel back to my home in Nebraska so a set of blinders would be nice. I currently run a escort x50 red on my 2012 VW Jetta SE. Im looking to get a set of blinder hp-905 but just have a few questions. Just wanted to know if I could use two heads up front and one in the back? Also just wanted to know if the blinder CPU could be updated before I take it to get installed? Also does anyone have any good ideas where to put the CPU in a jetta.