My mk6 came with a rns510 and I use a tomtom in the works van everyday of the week and have done for the last 5/6 years, I was amazed how good the vw rns510 is clear screen, well lit both night and day, easy to use, good poi's, I love the way the directions are on the dash aswell. Prefer it over the tomtom which can often throw a wobbly! tomtom hd traffic is good though.
I had always read in magazines that factory fitted sat navs were'nt worth the money you should go for aftermarket units like tomtom etc, but I recommend the vw system!! (especially good value as a retro fit) I only wish I used my car to go to more places that I didn't know so I could use the satnav more!
