You will need a adaptor between the can-bus connection to iso.
Then a direct connection from VSS to AVIC
There is small numbers on the blue connector
The VSS will with garantee make your positioning better
The VSS is an analoge pulse
Sorry 4 my bad english
I got a skoda octavia II from 2005, it got gala in the "iso connector" but NO vss, do i need to get it from the instrument cluster or is the gala ok??
sorry 4 my baaad english