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How to use non-subaru maps on your OEM subaru Nav Hi Everyone, I'm kinda new here and lurk often but rarely have anything good to offer so I don't post. That said, I have done a lot of research on our OEM subaru navigation units and wanted to consolidate the info here so that you can learn a bit on ways to update your maps without having to purchase the OEM ones from Subaru. So, firstly the subaru OEM navigation systems in 2007 + Subarus are ALL Kenwood DV3200 based systems. These are actually made by DENSO, who happens to make systems in Toyotas, Saabs, Volvos and  Landrovers  along with lots of GM vehicles. This is important because it is possible to use Toyota, Saab, Volvo and Land Rover Maps in your Subaru Navigation system. Your navigation system "MAP" DVD actually consists of 2 sets of data. The 1st is the "System" and the second is the "Map" itself. As far as I know, you can only update the "system" software using...