I been looking around around and i only saw in the magazines where a G had HKS software or something that shows gauges, dyno, obd II scanner, and efficiency. I was wondering if anyone has wired themselves or seen somewhere where someone done did that.

(Sorry if its a re-post, i wasn't able to find first so figured i go to option 2)

 

Nope, haven't seen it, but if you get the hardware found in the "Can I play DVDs on my factory navigation?" sticky, you can put whatever video feed you want onto that screen.