Tried to use the the search function to no avail. My 660 is on its way. I picked up The pigtail from BMW to plug into the factory GPS plug. Problem is, the three wires on the pigtail are not marked. How do I determ what wires go where on the cradle. I was told one of the wires does not get used.
I know others have done this. Please help
I know others have done this. Please help