kolchak Posted December 29, 2009 Share Posted December 29, 2009 Hi I'm new here & after 45 min. of searching decided to risk the ire of folks here by asking something that has probably been beaten to death. What is the cheapest/best way to upgrade the generation 2/3 Nav system in my 03 GX 470? thanks much Quote Link to comment Share on other sites More sharing options...
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