CID Superfecta - GoogleContacts

I was trying to configure GoogleContacts on superfecta, but there is no instructions what so ever and their little question mark helper does not help at all.
So to configure GoogleContacts you have
Google ID ( I assume it is email)
Google Code (what is this??? If you click question mark explanation gives no clue)
Access Token
Client ID (you have something in this field)
Client Secret (field already filled).

Can anyone tell me how to get it working please?