Just finished up mine today using a $99 Windows tablet and my old head unit. I waited years for a Windows tablet this small since I couldn't get droid platform to work. Consult cable stays plugged directly into tablet along with power from cigarette lighter source re-routed. This provides on-the-fly switching between media/nav to ECUTalk gauges. Love it so far, brings a very modern touch
Of course once it was all together I realized I forgot to plug the oem clock back in