I had been riding with my radio for about 2 years without it hooked up in my yukon. And I was fighting the navigation, have to reset my position all the time. Got bored today and went and found out where the VSS wire was in my truck. I hooked it up to get the speed gauge working on the deck and the navigation works perfect now. I am always facing forward on the road. Now it puts up the white dots that show you what roads that you have been on. For all that need to know.

I have the 1999 GMC Yukon SLT, the body style from 1996-1999.

The VSS wire is Dark Green with a white stripe on it behind the radio. you will see it.

Same here, rode around for about to years without the vss wire hooked up, It's hooked up now.

I tink i need to hook mine up soon. What wire is it that comes out of the back of the d3. Just asking just incase its not marked when i go to take it out of truck to hook it up. Thanks

Now it puts up the white dots that show you what roads that you have been on.

Has nothing to do with the VSS.

Pink wire?