I'm in North America, so can't help you with NZ stations much. The picture is of the original traffic attachment device, and the one I had only lasted the 1 year's subscription built into it. I now have a power cord with Traffic built into that provides traffic to mine,

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but I believe that may be a "LIVE" feature and may not work with yours. You'll need to research whether this will work with a 930. Good Luck!!!