In my case, I don't have any previous nav version to upgrade - I'm trying to do a new install of a MK4. The MK4 I bought came without any cables - just the module itself, so I'm not sure if I also need additional cables. As mentioned earlier, I already have everything else installed in my car (bluetooth, TV, Radio, OBC, 16:9 monitor, 6-cd changer). Does anyone know if I need extra cables?? Thanks!