What about my big sovereign rings.... 
Thanks for info
There's your answer.....remove one big sovereign ring.....jobs done

Seriously though, when I put the RNS510 in my Mk6 I was concerned about it getting marked but it was fine.
Plus these new units aren't interchangeable so its not as if you can sell on your Discovery Pro when you come to sell the car. Unless there are big scores on the screen folk would see any scratches as age related with the car. Not that I've had any scratches in over a years use but then my sovereigns are kept for my Saturday Night fever gear
