You really need to see a local forum member with the RNS510. Then if you want to add the proper phone kit at a later date you won't have wasted a load of cash. I wish I'd have done it right first time.
The RNS510 is amazing, and with the right phone prep it's superb!
.....then at a later date you can also add the reverse park camera in the boot handle and view everything on screen
