ive seen this before i dont remember but how do i set up the speed sensor so it shows up on the screen with the odometers on the screen and gas etc...

and it has to do with the VSS Wire.. is there a really good diagram i can see to help and easy to read.?

You can't display your speed on the screen with the Z series.

Only on the Z1, Z2, and Z3.

ive seen this before i dont remember but how do i set up the speed sensor so it shows up on the screen with the odometers on the screen and gas etc...

 

 

and it has to do with the VSS Wire.. is there a really good diagram i can see to help and easy to read.?

You can see the current speed on the Settings/NAV Settings/3D Calibration screen. I don't know if it is a computed speed from VSS or if it is from GPS. VSS would still be fairly accurate (more than your speedo) if it has been calibrated over enough time by the HU.

I know it is a spot reading instead of some average. I can see it responding quickly to my change in speed.