Hey guys. Everysince I added navigation to my car, I notived that whenever i go under bridges and tunnels, the nav stops moving. That got me to thinking it was only recieving the Sat Signal. I went into that hidden menu and saw that under Wheel Speed it would always say 0.

Anybody know what could be wrong?

WHen I put nav in my car, I replaced the wiring harness in my car with navigation harness and plugged everything in. My nav computer is MK4

Thanks for the help guys!