does the VSS wire to be hook up?
why does it need the speed sensor when there's a GPS antenna that track where the car is at all time?

you dont need the VSS wire. it is just for more accurate readings when using the navigation. im not running one in my jeep and i had my cop buddy clock me, my N3 said i was doin 68.7 MPH or so, he clocked me doing 67. thats not bad...

hope this helps...

...skeeter...

You kind of answered your own question. The VSS is for when the GPS antenna cannot track you at all times. Like in a tunnel, on the bottom level of a bridge, or in the mountains. It also makes your vehicle dynamics more accurate

wratran said:

does the VSS wire to be hook up?
why does it need the speed sensor when there's a GPS antenna that track where the car is at all time?

They had to unhook my VSS in my Land Rover discovery--it was all whacked out. They said I needed some $300 part to get it to work properly, so they left it unhooked and Im running it that way.

I didnt hook up mine and I thought that I could not use the Vehicul Dynamic screen but Suprise Suprise it work without that Speed Sensor wire.

Just wondering...i have my vss wire hooked up, yet i get no dyanamics listed on the head unit. it wont even light up saying that it detects it. Did i forget to hook something up? I have a 98 acura cl 3.0