2004 Ford F150 Lariat 5.4

I was curious, would anyone have, or know where to find the gauge pod schematics?

I'm building a digital dashboard (I know, I'm a nerd) and I am about to begin soldering the digital speedometer and the digital tach, but I have no idea what the output voltage to the speedometer, tach, or even the fuel gauge is, in order to calibrate the new gauges.....BLAH....

Thanks in advance,

izzy