Sat Nav on MY07 R32

[aristocrat]

Just wondering if any of you guys know is there a difference between the factory Sat Nav unit fitted to an 06 build MY07 R32 vs a Sat Nav unit say for the later MY08?

Would the earlier model have the auxillary inputs and ipod integration via a cable if so desired?

Are the features with the earlier unit as good as the later or otherwise? Is the sound quality the same?

Thanks very much for the input.