connected white with yellow to reverese and the sensor menu tells me when the car is in reverse.
im 90% sure i have the correct wires connected for the speed sensor but it still sits at 0
am i rigth in thinking it should dispay + or - when moving / reversing or should it display a number?

should it display somehting other than 0 as i have it connected to the average speed pulse on the radio? perhaps thats the issue.
any other thoughts?