Hi

I have what I believe is a rear view camera on my 2008 Superb, when I reverse I get the distance grid but no picture! I have a Kenwood DNX516DABS fitted, any ideas? Thanks

Faulty camera I reckon 
Had the same on my C Class the cameras only last about a year and a half.

Take head unit out and see what kind of rear camera ( Plug type) is needed 

And order a replacement from ebay about £10

Is this an Ampire camera that is replacing one of the license plate lights or has an additional hole been drilled?

That is one dear camera £85 from Amazon