As above, depends on the year of your car.
If its less than 2008 you will probably need a CAN Gateway upgrade to be sure.
Not too hard to fit as long as you don't mind being upside down on your back with a brake pedal in chewing distance
![Grin :grin:](https://www.mk5golfgti.co.uk/forum/Smileys/newsmileys/grin.gif)
Seriously though, if you have someone local with VCDS, they can scan your CAN Gateway and find out which version, in turn whether you need to upgrade it.
Sean
PS> Good shout on the RNS510 :)