I am quite aware, just looking for something that would be in-dash with navigation etc. I did run across this article:http://www.tapr.org/pipermail/aprssig/2006-August/015772.html
I don't think the reference links are working though.
Another link using motorola chip of OnStar:http://www.openminds.net/onstar/1_explanation.html
Seems like it is for older style OnStar units.
Maybe the GPS stream appears on the VW's Can-Bus anyone know?
Ben ARS W4QED